Acids and bases
Download as PPTX, PDF0 likes713 views
Acids are sour substances that turn litmus paper red, while bases are bitter substances that turn litmus paper blue. Examples of common acids include citric acid found in citrus fruits and hydrochloric acid. Common bases include sodium hydroxide found in soap and calcium hydroxide in limewater. Indicators like litmus paper, china rose, and turmeric can test whether a substance is acidic or basic by changing color in their presence. The reaction between an acid and base is called neutralization, which produces salt and water with the evolution of heat. Neutralization can be used to treat insect stings, indigestion, soil acidity, and neutralize acidic factory waste.
1 of 14
Downloaded 11 times
Recommended
Acid Base and Salts 
Acid Base and Salts Vidya Bharti
油
This document discusses acids, bases, and indicators. It defines acids as sour substances and bases as bitter substances. It explains that litmus paper and other natural indicators like turmeric can be used to test whether a substance is acidic or basic by changing color in acid or base. Neutralization occurs when an acid and base are mixed, forming a salt and neutral solution. Examples of neutralization in everyday life include treating indigestion with antacids, reducing bee stings with baking soda, adjusting soil pH, and treating factory waste before disposal.Acid bases and salts 17 jul 13
Acid bases and salts 17 jul 13N Kameshwar Rao
油
This presentation discusses acids, bases and salts. It defines acids as sour substances that turn litmus red, and lists common examples like citric acid. Bases are defined as bitter substances that turn litmus blue, with examples like sodium hydroxide. Common acids found in foods like vinegar, citrus fruits, and curd are identified. Indicators are substances that change color in acids and bases, and examples like litmus paper and turmeric are described. Neutralization reactions between acids and bases are covered, noting they produce heat and a salt. An activity is presented testing different solutions with indicators like litmus and china rose to identify them as acidic or basic.Power point presentation acid and alkali
Power point presentation acid and alkaliMuhammad Umar
油
This document discusses acids and alkalis, including their properties, uses, and the process of neutralization. Acids have a sour taste, pH less than 7, and turn litmus red, while alkalis taste bitter and feel soapy, have a pH over 7, and turn litmus blue. Common acids include citric acid and nitric acid, used in foods and fertilizers. Common alkalis include sodium hydroxide for soap and ammonia for cleaners. Neutralization occurs when an acid and alkali react to form water and a salt, and has applications like hair conditioners and ant stings.Acids, bases and salts
Acids, bases and saltsAnwesh Patro
油
This document discusses acids and bases. It explains that acids taste sour and contain hydrogen ions, while bases taste bitter and feel soapy. Examples of common acids include citric acid in lemons and acetic acid in vinegar. Baking soda is an example of a base. Litmus paper is used to test whether a substance is acidic or basic - litmus turns red in acids and blue in bases. A neutralization reaction occurs when an acid and base react, forming a salt and water. The document provides several examples of acids and bases found in both natural and human-made substances.Acids and bases and salts
Acids and bases and saltsSamarin Samarin
油
The document discusses acids and bases. It defines acids as substances that give up hydrogen ions in solution and bases as those that give up hydroxide ions. It then provides examples of common acids like vinegar and lemon juice and bases like baking soda. It explains how to test for acids and bases using litmus paper and red cabbage juice and lists some major acid-base theories. DNA is identified as an acid according to Bronsted's definition.Chapter - 5, Acids, Bases and Salts, Science, Class 7
Chapter - 5, Acids, Bases and Salts, Science, Class 7Shivam Parmar
油
I have expertise in making educational and other PPTs. Email me for more PPTs at a very reasonable price that perfectly fits in your budget.
Email: parmarshivam105@gmail.com
Chapter - 5, Acids, Bases and Salts, Science, Class 7
ACIDS
EXAMPLES OF ACIDS
ACIDS - FOUND IN
BASE (ALKALINE)
EXAMPLES OF BASE
BASE - FOUND IN
NEUTRAL SUBSTANCE
INDICATORS
EXAMPLES OF INDICATOR
NATURAL INDICATOR (LITMUS)
TURMERIC (NATURAL INDICATOR)
CHINA ROSE
PHENOLPHTHALEIN INDICATOR油
NEUTRALISATION
NEUTRALIZATION IN EVERYDAY LIFE
INDIGESTION
ANT BITE
SOIL TREATMENT
FACTORY WASTES
Every topic of this chapter is well written concisely and visuals will help you in understanding and imagining the practicality of all the topics.
By Shivam Parmar (Entrepreneur)
Class 7 chapter 5 Acids ,bases and salts ppt 1
Class 7 chapter 5 Acids ,bases and salts ppt 1AnuJaswal
油
This document discusses acids, bases, and indicators. It provides examples of natural acids and bases commonly used in daily life. It explains that indicators are substances used to determine if a substance is acidic or basic by changing color when added. Examples of natural indicators discussed include litmus, turmeric, and china rose. Litmus extracted from lichens changes color from mauve to red in acids and blue in bases. Turmeric and soaked china rose petals also change color when added to acids versus bases.Acids and alkalis
Acids and alkalisgriggans
油
Acids are found in fruit juices, vinegar, fizzy drinks, and citrus fruits. They taste sour and can cause acid rain. Alkalis are found in soap, toothpaste, washing powder, and drain cleaner. They have a soapy texture. Indicators like universal indicator and litmus paper can test for acids and alkalis, with litmus turning red in acids and blue in alkalis. Acids react with carbonates and metals, while neutralization occurs when an acid and alkali are combined, forming a salt and water. The pH scale measures acidity and alkalinity, with acids being below 7 and alkalis above 7 on the scale.Acids, Bases and Neutralization
Acids, Bases and NeutralizationMusPaintal
油
This document discusses acids and bases. It defines strong and weak acids, and lists common strong acids like hydrochloric acid. It also defines properties of bases like having a pH greater than 7 and neutralizing acids. Common strong bases include sodium hydroxide. The document discusses various uses of acids and bases in areas like manufacturing fertilizers, explosives, soaps, and more. It also explains the process of neutralization when an acid and base react to form salt and water, and gives examples of neutralization in processes like relieving indigestion and treating ant bites.Sandeep ppt on acids, bases and salts for vii
Sandeep ppt on acids, bases and salts for viiprincesandeepdragon
油
This document discusses acids and bases. It defines acids as sour tasting substances that produce hydrogen ions and turn litmus red. Common acids include those found in vinegar, citrus fruits, and other foods. Bases are defined as bitter tasting and soapy substances that turn litmus blue. Common bases include baking soda, detergents, and antacids. The document also explains how litmus paper can be used as a natural indicator to test whether a substance is acidic or basic by changing color. Acids, bases and salts . (CLASS -7) BY : DARSHAN BHAT
Acids, bases and salts . (CLASS -7) BY : DARSHAN BHATDarshanBhat10
油
It is helpful for class 7 students . I hope you will like this . Thank you and do not forget to watch my other uploads.Class 7 chapter 5 Acids ,bases and Salts ppt 2
Class 7 chapter 5 Acids ,bases and Salts ppt 2AnuJaswal
油
The document discusses neutralization reactions and their importance in daily life. It defines neutralization as the reaction between an acid and base to form a salt and water. An example reaction of hydrochloric acid and sodium hydroxide forming sodium chloride and water is provided. Neutralization reactions are important in relieving indigestion through antacids and reducing the itch of ant stings. Neutralization of acidic soil or factory waste is also discussed to prevent environmental damage.Acids and alkalis
Acids and alkalisbaha696969
油
The document discusses acids and alkalis, including their properties and how they interact. It provides information on the pH scale and using universal indicator to test the pH of household substances. Key points covered include acids being dangerous in high amounts, alkalis being the opposite of acids, and neutralization occurring when acids and alkalis are mixed in the correct amounts to cancel each other out and become neutral with a pH of 7. Hands-on experiments are described for investigating acids, alkalis and the pH scale.Acids and alkalis
Acids and alkalisammz1
油
This document discusses acids and alkalis. It defines acids as substances that form sour solutions when dissolved in water, such as lemon juice and vinegar. Alkalis form soapy solutions when dissolved in water and are present in many cleaning products. The document explains that acids and alkalis react through a neutralization reaction, forming a salt and water. It describes using indicators like litmus paper to test whether a solution is acidic or alkaline. Applications of neutralization mentioned include treating bee stings, indigestion, factory waste, and acidic soil.Acids and bases power point
Acids and bases power pointAshflah
油
Acids are substances that are sour, such as lemon juice and vinegar, and are known as acidic. Bases are the opposite of acids and can also be corrosive, while alkalis are bases that are soluble in water. The litmus test and pH scale are used to determine whether a substance is an acid or base and the strength of acids and bases.Acids & bases
Acids & basesSyed Shah
油
This document discusses acids and bases. It defines acids as substances that produce hydrogen ions (H+) in aqueous solutions, with a pH range of 0-7. Bases, also called alkalines, produce hydroxide ions (OH-) in aqueous solutions with a pH range of 7-14. A pH of 7 indicates a neutral substance. The goals are to determine the differences between acids and bases, discuss their importance, and perform an experiment testing the pH of various substances.Acid and bases and salts
Acid and bases and saltsNidhiKaushik26
油
There are two main types of acids: organic acids which are obtained from plants and animals, and mineral acids which are derived from inorganic materials. Acids and bases can be classified as strong or weak based on their corrosive properties and reaction behavior. A neutralization reaction occurs when an acid and base react to form a salt and water, resulting in a neutral solution. Neutralization reactions have many applications, including treating ant stings, indigestion, soil acidity, sewage waste, and protecting teeth. Indicators like litmus paper and natural dyes can be used to determine whether a solution is acidic, basic, or neutral.Assignment 4 power point
Assignment 4 power pointNuraini Noruddin
油
The document provides information about acids and bases. It includes:
1) A list of group members and their student IDs working on the project.
2) Learning outcomes about defining acids, bases and alkalis and their uses.
3) A video link about the introduction to acids and bases.
4) Definitions and examples of acids, bases, and alkalis. Chemical reactions are shown to demonstrate their properties.
5) Types of acids and bases. Uses of acids, bases and alkalis in daily life are discussed.
6) Experiments are described to test the properties of acids and bases using litmus paper.Acids,bases and salts
Acids,bases and saltsMMuthukumarasamy
油
Acids and bases are classified based on their taste and reaction with indicators. Acids are sour, turn litmus red, and have a pH below 7. Bases are bitter, soapy to touch, turn litmus blue, and have a pH above 7. When an acid and base are mixed, a salt and water are produced through a neutralization reaction where the acid and base cancel out each other's effects. Litmus paper is a common natural indicator that is used to test whether a substance is acidic or basic based on the color it turns - red for acidic and blue for basic.
Acids bases and salts
Acids bases and saltsjoverba
油
This document provides an introduction to acids, bases and salts. It discusses key concepts including:
1) Acids have a sour taste and feel, bases have a bitter taste and slippery feel. Acids react vigorously with metals while bases don't.
2) When acids and bases are mixed, a neutralization reaction occurs producing water and a salt.
3) Arrhenius defined acids as substances that release H+ ions in water and bases as those that release OH- ions. Bronsted-Lowry expanded this to include acids as proton donors and bases as proton acceptors.
4) The pH scale is used to measure acidity/basicity, with acids having a pH <7 and basesAcid , bases and salt
Acid , bases and saltShreyasingh317
油
ACID, BASES AND SALTS DETAILED EXPLANATION. ANYONE CAN UNDERSTAND IT COMPLETELY. VERY HELPFUL FOR STUDENTSAcids and bases
Acids and basesBrandi
油
This document discusses compounds, acids, and bases. It defines compounds as groups of bonded elements and lists some common chemical compounds along with their elemental compositions. Acids are defined as compounds that donate hydrogen ions in solution and have a low pH, while bases donate hydroxide ions, have a high pH, and are often used for cleaning. Examples of acids and bases are provided. The document also discusses using indicators like litmus paper to determine if a substance is an acid or base based on the color change, and that acids and bases neutralize through reactions that produce water.Acids and bases
Acids and basesiamlailyelias
油
This document defines acids and bases, and discusses their properties and reactions. Acids are substances that produce hydrogen ions in water, while bases react with acids to form salts and water. The document also describes how water is essential for acids to produce hydrogen ions and bases to produce hydroxide ions. It introduces the pH scale for measuring acidity and alkalinity, and distinguishes between strong and weak acids and bases based on their degree of ionization in water. Common examples of acids and bases are provided.Acids and bases
Acids and basesbiologica.edu
油
This document defines acids and bases and discusses their properties. It states that acids produce hydrogen ions in water and have a pH less than 7, while bases are metal oxides or hydroxides that react with acids to form salts and water. Common acids include hydrochloric acid and sulfuric acid, while common bases include sodium hydroxide and calcium hydroxide. The document also discusses concentration versus strength, noting that concentration can change but strength depends on the inherent properties of the acid or base.Acids, bases and salts
Acids, bases and saltsSHRUTHISHETTY57
油
This document discusses acids, bases and salts. It defines acids as sour substances that contain acid and bases as bitter substances that feel soapy. Examples of common acids include lemon juice, vinegar and citric acid found in fruits. Examples of common bases include baking soda, soap, and milk of magnesia. Acids and bases are identified using natural indicators like litmus, turmeric and china rose that change color. Neutralization reactions between acids and bases produce salts and water. Neutralization plays an important role in everyday processes like relieving indigestion, treating ant bites and factory waste.Acid base ppt
Acid base pptAnurak Phansuwan
油
This document discusses acids and bases. It defines them according to Arrhenius' theory as substances that produce H+ ions (acids) or OH- ions (bases) when dissolved in water. Acids have a pH below 7 and taste sour, while bases have a pH above 7 and taste bitter. Examples of common acids and bases are provided, along with their properties. The document also introduces the pH scale and explains how pH values indicate acid strength. Finally, it describes an experiment to test solutions and identify them as acids or bases using blue-colored juice that changes color in their presence.Acid, Bases and salts | Indicators
Acid, Bases and salts | IndicatorsAhamed Yoonus S
油
This is 7th standard science topics.
Chapter 5
Acid bases and salts.
In that the sub category is IndicatorsAcids-Bases-and-Salts.pdf/7th class science
Acids-Bases-and-Salts.pdf/7th class scienceSandeep Swamy
油
Here's a description of Acids, Bases, and Salts for 7th class:
Acids, Bases, and Salts
Acids:
- Substances that release hydrogen ions (H+) in solution
- Turn blue litmus red
- Have a sour taste
- Examples: Hydrochloric acid (HCl), Sulphuric acid (H2SO4), Citric acid
Bases:
- Substances that release hydroxide ions (OH-) in solution
- Turn red litmus blue
- Have a bitter taste
- Examples: Sodium hydroxide (NaOH), Calcium hydroxide (Ca(OH)2), Soap
Salts:
- Compounds formed by the reaction between acids and bases
- Neutral in nature (neither acidic nor basic)
- Examples: Sodium chloride (NaCl), Calcium carbonate (CaCO3)
Types of Acids:
1. Strong acids (e.g., HCl, H2SO4)
2. Weak acids (e.g., citric acid, acetic acid)
3. Organic acids (e.g., amino acids)
4. Inorganic acids (e.g., HCl, H2SO4)
Types of Bases:
1. Strong bases (e.g., NaOH, Ca(OH)2)
2. Weak bases (e.g., ammonia, baking soda)
3. Organic bases (e.g., amines)
4. Inorganic bases (e.g., NaOH, Ca(OH)2)
Importance of Acids, Bases, and Salts:
1. Industrial applications (e.g., manufacturing, textiles)
2. Biological processes (e.g., digestion, respiration)
3. Environmental significance (e.g., soil pH, water quality)
4. Medicinal uses (e.g., antacids, acid reflux treatment)
Key Terms:
1. pH scale
2. Neutralization
3. Chemical reaction
4. Ion exchange
Experiments:
1. Testing acidity/basicity using litmus paper
2. Preparing salts through acid-base reactions
3. Observing the effects of pH on plants
Key Questions:
1. What are acids and bases?
2. How are salts formed?
3. What are the properties of acids, bases, and salts?
4. What are the uses and importance of acids, bases, and salts?
This description provides a comprehensive overview of acids, bases, and salts for 7th-class students, covering definitions, types, importance, and key concepts.chapter5class7th-200723223329.pptx
chapter5class7th-200723223329.pptxssuser988ac8
油
This document discusses acids, bases, and salts. It defines acids as sour tasting substances found in foods like lemons and oranges. Examples of acids include lemon juice, vinegar, and tamarind. Bases are described as bitter tasting and soapy substances found in products like bleach, soap, and ammonia. Neutral substances are neither acidic nor basic. Indicators are used to determine if a substance is acidic or basic by changing color in their presence, such as litmus paper turning red in acids and blue in bases. The document also explains the process of neutralization that occurs when an acid and base are mixed, producing a salt and water.More Related Content
What's hot (20)
Acids, Bases and Neutralization
Acids, Bases and NeutralizationMusPaintal
油
This document discusses acids and bases. It defines strong and weak acids, and lists common strong acids like hydrochloric acid. It also defines properties of bases like having a pH greater than 7 and neutralizing acids. Common strong bases include sodium hydroxide. The document discusses various uses of acids and bases in areas like manufacturing fertilizers, explosives, soaps, and more. It also explains the process of neutralization when an acid and base react to form salt and water, and gives examples of neutralization in processes like relieving indigestion and treating ant bites.Sandeep ppt on acids, bases and salts for vii
Sandeep ppt on acids, bases and salts for viiprincesandeepdragon
油
This document discusses acids and bases. It defines acids as sour tasting substances that produce hydrogen ions and turn litmus red. Common acids include those found in vinegar, citrus fruits, and other foods. Bases are defined as bitter tasting and soapy substances that turn litmus blue. Common bases include baking soda, detergents, and antacids. The document also explains how litmus paper can be used as a natural indicator to test whether a substance is acidic or basic by changing color. Acids, bases and salts . (CLASS -7) BY : DARSHAN BHAT
Acids, bases and salts . (CLASS -7) BY : DARSHAN BHATDarshanBhat10
油
It is helpful for class 7 students . I hope you will like this . Thank you and do not forget to watch my other uploads.Class 7 chapter 5 Acids ,bases and Salts ppt 2
Class 7 chapter 5 Acids ,bases and Salts ppt 2AnuJaswal
油
The document discusses neutralization reactions and their importance in daily life. It defines neutralization as the reaction between an acid and base to form a salt and water. An example reaction of hydrochloric acid and sodium hydroxide forming sodium chloride and water is provided. Neutralization reactions are important in relieving indigestion through antacids and reducing the itch of ant stings. Neutralization of acidic soil or factory waste is also discussed to prevent environmental damage.Acids and alkalis
Acids and alkalisbaha696969
油
The document discusses acids and alkalis, including their properties and how they interact. It provides information on the pH scale and using universal indicator to test the pH of household substances. Key points covered include acids being dangerous in high amounts, alkalis being the opposite of acids, and neutralization occurring when acids and alkalis are mixed in the correct amounts to cancel each other out and become neutral with a pH of 7. Hands-on experiments are described for investigating acids, alkalis and the pH scale.Acids and alkalis
Acids and alkalisammz1
油
This document discusses acids and alkalis. It defines acids as substances that form sour solutions when dissolved in water, such as lemon juice and vinegar. Alkalis form soapy solutions when dissolved in water and are present in many cleaning products. The document explains that acids and alkalis react through a neutralization reaction, forming a salt and water. It describes using indicators like litmus paper to test whether a solution is acidic or alkaline. Applications of neutralization mentioned include treating bee stings, indigestion, factory waste, and acidic soil.Acids and bases power point
Acids and bases power pointAshflah
油
Acids are substances that are sour, such as lemon juice and vinegar, and are known as acidic. Bases are the opposite of acids and can also be corrosive, while alkalis are bases that are soluble in water. The litmus test and pH scale are used to determine whether a substance is an acid or base and the strength of acids and bases.Acids & bases
Acids & basesSyed Shah
油
This document discusses acids and bases. It defines acids as substances that produce hydrogen ions (H+) in aqueous solutions, with a pH range of 0-7. Bases, also called alkalines, produce hydroxide ions (OH-) in aqueous solutions with a pH range of 7-14. A pH of 7 indicates a neutral substance. The goals are to determine the differences between acids and bases, discuss their importance, and perform an experiment testing the pH of various substances.Acid and bases and salts
Acid and bases and saltsNidhiKaushik26
油
There are two main types of acids: organic acids which are obtained from plants and animals, and mineral acids which are derived from inorganic materials. Acids and bases can be classified as strong or weak based on their corrosive properties and reaction behavior. A neutralization reaction occurs when an acid and base react to form a salt and water, resulting in a neutral solution. Neutralization reactions have many applications, including treating ant stings, indigestion, soil acidity, sewage waste, and protecting teeth. Indicators like litmus paper and natural dyes can be used to determine whether a solution is acidic, basic, or neutral.Assignment 4 power point
Assignment 4 power pointNuraini Noruddin
油
The document provides information about acids and bases. It includes:
1) A list of group members and their student IDs working on the project.
2) Learning outcomes about defining acids, bases and alkalis and their uses.
3) A video link about the introduction to acids and bases.
4) Definitions and examples of acids, bases, and alkalis. Chemical reactions are shown to demonstrate their properties.
5) Types of acids and bases. Uses of acids, bases and alkalis in daily life are discussed.
6) Experiments are described to test the properties of acids and bases using litmus paper.Acids,bases and salts
Acids,bases and saltsMMuthukumarasamy
油
Acids and bases are classified based on their taste and reaction with indicators. Acids are sour, turn litmus red, and have a pH below 7. Bases are bitter, soapy to touch, turn litmus blue, and have a pH above 7. When an acid and base are mixed, a salt and water are produced through a neutralization reaction where the acid and base cancel out each other's effects. Litmus paper is a common natural indicator that is used to test whether a substance is acidic or basic based on the color it turns - red for acidic and blue for basic.Acids bases and salts
Acids bases and saltsjoverba
油
This document provides an introduction to acids, bases and salts. It discusses key concepts including:
1) Acids have a sour taste and feel, bases have a bitter taste and slippery feel. Acids react vigorously with metals while bases don't.
2) When acids and bases are mixed, a neutralization reaction occurs producing water and a salt.
3) Arrhenius defined acids as substances that release H+ ions in water and bases as those that release OH- ions. Bronsted-Lowry expanded this to include acids as proton donors and bases as proton acceptors.
4) The pH scale is used to measure acidity/basicity, with acids having a pH <7 and basesAcid , bases and salt
Acid , bases and saltShreyasingh317
油
ACID, BASES AND SALTS DETAILED EXPLANATION. ANYONE CAN UNDERSTAND IT COMPLETELY. VERY HELPFUL FOR STUDENTSAcids and bases
Acids and basesBrandi
油
This document discusses compounds, acids, and bases. It defines compounds as groups of bonded elements and lists some common chemical compounds along with their elemental compositions. Acids are defined as compounds that donate hydrogen ions in solution and have a low pH, while bases donate hydroxide ions, have a high pH, and are often used for cleaning. Examples of acids and bases are provided. The document also discusses using indicators like litmus paper to determine if a substance is an acid or base based on the color change, and that acids and bases neutralize through reactions that produce water.Acids and bases
Acids and basesiamlailyelias
油
This document defines acids and bases, and discusses their properties and reactions. Acids are substances that produce hydrogen ions in water, while bases react with acids to form salts and water. The document also describes how water is essential for acids to produce hydrogen ions and bases to produce hydroxide ions. It introduces the pH scale for measuring acidity and alkalinity, and distinguishes between strong and weak acids and bases based on their degree of ionization in water. Common examples of acids and bases are provided.Acids and bases
Acids and basesbiologica.edu
油
This document defines acids and bases and discusses their properties. It states that acids produce hydrogen ions in water and have a pH less than 7, while bases are metal oxides or hydroxides that react with acids to form salts and water. Common acids include hydrochloric acid and sulfuric acid, while common bases include sodium hydroxide and calcium hydroxide. The document also discusses concentration versus strength, noting that concentration can change but strength depends on the inherent properties of the acid or base.Acids, bases and salts
Acids, bases and saltsSHRUTHISHETTY57
油
This document discusses acids, bases and salts. It defines acids as sour substances that contain acid and bases as bitter substances that feel soapy. Examples of common acids include lemon juice, vinegar and citric acid found in fruits. Examples of common bases include baking soda, soap, and milk of magnesia. Acids and bases are identified using natural indicators like litmus, turmeric and china rose that change color. Neutralization reactions between acids and bases produce salts and water. Neutralization plays an important role in everyday processes like relieving indigestion, treating ant bites and factory waste.Acid base ppt
Acid base pptAnurak Phansuwan
油
This document discusses acids and bases. It defines them according to Arrhenius' theory as substances that produce H+ ions (acids) or OH- ions (bases) when dissolved in water. Acids have a pH below 7 and taste sour, while bases have a pH above 7 and taste bitter. Examples of common acids and bases are provided, along with their properties. The document also introduces the pH scale and explains how pH values indicate acid strength. Finally, it describes an experiment to test solutions and identify them as acids or bases using blue-colored juice that changes color in their presence.Acid, Bases and salts | Indicators
Acid, Bases and salts | IndicatorsAhamed Yoonus S
油
This is 7th standard science topics.
Chapter 5
Acid bases and salts.
In that the sub category is IndicatorsSimilar to Acids and bases (20)
Acids-Bases-and-Salts.pdf/7th class science
Acids-Bases-and-Salts.pdf/7th class scienceSandeep Swamy
油
Here's a description of Acids, Bases, and Salts for 7th class:
Acids, Bases, and Salts
Acids:
- Substances that release hydrogen ions (H+) in solution
- Turn blue litmus red
- Have a sour taste
- Examples: Hydrochloric acid (HCl), Sulphuric acid (H2SO4), Citric acid
Bases:
- Substances that release hydroxide ions (OH-) in solution
- Turn red litmus blue
- Have a bitter taste
- Examples: Sodium hydroxide (NaOH), Calcium hydroxide (Ca(OH)2), Soap
Salts:
- Compounds formed by the reaction between acids and bases
- Neutral in nature (neither acidic nor basic)
- Examples: Sodium chloride (NaCl), Calcium carbonate (CaCO3)
Types of Acids:
1. Strong acids (e.g., HCl, H2SO4)
2. Weak acids (e.g., citric acid, acetic acid)
3. Organic acids (e.g., amino acids)
4. Inorganic acids (e.g., HCl, H2SO4)
Types of Bases:
1. Strong bases (e.g., NaOH, Ca(OH)2)
2. Weak bases (e.g., ammonia, baking soda)
3. Organic bases (e.g., amines)
4. Inorganic bases (e.g., NaOH, Ca(OH)2)
Importance of Acids, Bases, and Salts:
1. Industrial applications (e.g., manufacturing, textiles)
2. Biological processes (e.g., digestion, respiration)
3. Environmental significance (e.g., soil pH, water quality)
4. Medicinal uses (e.g., antacids, acid reflux treatment)
Key Terms:
1. pH scale
2. Neutralization
3. Chemical reaction
4. Ion exchange
Experiments:
1. Testing acidity/basicity using litmus paper
2. Preparing salts through acid-base reactions
3. Observing the effects of pH on plants
Key Questions:
1. What are acids and bases?
2. How are salts formed?
3. What are the properties of acids, bases, and salts?
4. What are the uses and importance of acids, bases, and salts?
This description provides a comprehensive overview of acids, bases, and salts for 7th-class students, covering definitions, types, importance, and key concepts.chapter5class7th-200723223329.pptx
chapter5class7th-200723223329.pptxssuser988ac8
油
This document discusses acids, bases, and salts. It defines acids as sour tasting substances found in foods like lemons and oranges. Examples of acids include lemon juice, vinegar, and tamarind. Bases are described as bitter tasting and soapy substances found in products like bleach, soap, and ammonia. Neutral substances are neither acidic nor basic. Indicators are used to determine if a substance is acidic or basic by changing color in their presence, such as litmus paper turning red in acids and blue in bases. The document also explains the process of neutralization that occurs when an acid and base are mixed, producing a salt and water.ACID_BASES_AND_SALTS[1].pptx [Autosaved].pdf![ACID_BASES_AND_SALTS[1].pptx [Autosaved].pdf](https://cdn.slidesharecdn.com/ss_thumbnails/acidbasesandsalts1-240212074912-90554fd0-thumbnail.jpg?width=560&fit=bounds)
ACID_BASES_AND_SALTS[1].pptx [Autosaved].pdftejveersingh636946
油
This document discusses acids, bases, and indicators. It provides examples of acids like lemon juice and vinegar and bases like ammonia and baking soda. It also discusses neutral substances like water and salt. Indicators change color in acids versus bases, allowing identification of their nature. Litmus paper turns red in acids and blue in bases. Other natural indicators discussed are turmeric and china rose. The document also covers the process of neutralization when an acid and base react and cancel each other out, producing a salt and water.Acid and alkali
Acid and alkalishanewatson133
油
Acids have sour tastes and are corrosive. Common acids include citric acid in lemon juice and ethanoic acid in vinegar. Strong acids like hydrochloric, sulfuric, and nitric acids are dangerous because they can absorb water and cause burns or react violently with skin. Alkalis are also corrosive and slippery. When acids and alkalis neutralize each other in a chemical reaction, they form salts and water. Indicators change color in acids and alkalis and are used to test whether a solution is acidic or basic. Litmus turns red in acids and blue in bases. Universal indicator shows the strength of acidity or alkalinity through different colors.
Power point presentation
Power point presentationlijimol
油
This document discusses acids and alkalis, including their properties and reactions. Acids react with metals and carbonates, producing salts and hydrogen or water and carbon dioxide. Common acids include citric acid in lemons and ethanoic acid in vinegar. Alkalis are found in cleaning products and react with grease. Indicators change color in acids and alkalis, helping identify them. Litmus is red in acids and blue in alkalis. The pH scale measures acidity and alkalinity from 1-14, with 7 being neutral. Neutralization can relieve indigestion by countering excess stomach acid with baking soda.ACIDS BASES AND SALTS
ACIDS BASES AND SALTSYogitaGupta34
油
(d) Change of colour in an acid and a base depends on the type of the indicator.Acids, Bases & Indicators
Acids, Bases & IndicatorsSandhya .
油
This document discusses acids, bases, and indicators. It provides examples of common acids like vinegar and sulfuric acid, and bases like sodium hydroxide and baking soda. Indicators are substances that are used to test whether something is acidic or basic. Natural indicators mentioned include litmus, red cabbage juice, and turmeric paper. Litmus turns red in acid and blue in base. The document also discusses olfactory indicators that change smell in acids and bases, with vanilla given as an example. Finally, it mentions synthetic indicators like phenolphthalein and methyl orange that change color between acid and base.
Class 7th Chapter 5 ACIDS BASES AND SALTS.pptx
Class 7th Chapter 5 ACIDS BASES AND SALTS.pptxMVHerwadkarschool
油
This document provides an introduction to acids, bases and indicators for a 7th grade class. It defines acids and bases, explains how indicators like litmus paper and china rose petals can show if a substance is acidic or basic, and demonstrates the neutralization reaction between an acid and base to form salt and water. Examples of neutralization in everyday life include using antacids for indigestion and baking soda for ant bites.Class 7th Chapter 5 ACIDS BASES AND SALTS.pptx
Class 7th Chapter 5 ACIDS BASES AND SALTS.pptxMVHerwadkarschool
油
This document provides an introduction to acids, bases and indicators for a 7th grade class. It defines acids and bases, explains how indicators like litmus paper and china rose petals can show if a substance is acidic or basic, and demonstrates the neutralization reaction between an acid and base to form salt and water. Examples of neutralization in everyday life include using antacids for indigestion and baking soda for ant bites.Acids bases and indictors . BASIC IDEAS
Acids bases and indictors . BASIC IDEASsaima jafri
油
this power point includes and covers basic concepts of acids bases and indicators according to IGCSE chemistry curriculum
Indicators
Indicatorsgerardokeeffe
油
The document discusses acids and bases that are commonly found in households. It explains that acids have a sour taste and are corrosive, providing examples like lemon juice, vinegar, hydrochloric acid, and sulfuric acid. Acids react with metals to form salts and hydrogen, and with carbonates to form salts, carbon dioxide, and water. Bases or alkalis, like sodium hydroxide and calcium hydroxide, feel soapy and are corrosive. The document also introduces pH as a measure of acidity and alkalinity on a scale of 1-14, and mentions common acid-base indicators like litmus and universal indicator that change color over different pH ranges.Power point presentation acid and alkali
Power point presentation acid and alkaliMuhammad Umar
油
This document discusses acids and alkalis, including their properties, uses, and the process of neutralization. It notes that acids have a sour taste, pH less than 7, and turn litmus red, while alkalis have a bitter taste, pH greater than 7, and turn litmus blue. Common uses of acids include making fertilizers, dyes, and preservatives, while alkalis are used in soap, cleaners, and antacids. Neutralization occurs when an acid and alkali react to form water and a salt, and has applications like hair conditioning and treating bee stings.ACIDS AND BASES-1
ACIDS AND BASES-1bharanilakshmijanjan
油
This document provides information about acids and bases, including:
- Natural and synthetic indicators that are used to indicate the presence of acids and bases, such as litmus paper, methyl orange, and phenolphthalein.
- Examples of natural and synthetic acids and bases, and their properties. Acids are sour to taste while bases are soapy to touch.
- How indicators like litmus paper and methyl orange can be used to test if a substance is an acid or base.
- Examples of everyday substances that are acids or bases and their uses, such as acids in vinegar, citrus fruits, and batteries and bases in soaps, cleaning products, and milk of magnesia.Acids, bases and Salts
Acids, bases and SaltsManik Bhola
油
ACIDS:
These are the substances which have sour in taste.
They turn blue litmus solution to red.
They give H ions in aqueous solution
Examples of Acids : -
HCl - Hydrochloric Acid
BASES
These substances are bitter in taste.
They turn red litmus solution to blue.
They give OH ions in aqueous solution.
Examples of Bases : -
NaOH - Sodium Hydroxide
KOH - Potassium Hydroxide
Alkalis - These are the bases soluble in water. like - NaOH (sodium Hydroxide)
INDICATORS
There are the substance that changes their colour / smell in different types of substances.
Types of Indicators
l. Natural Indicators - Those indicators found in nature by trees called Natural Indicators
Ex - Litmus, Turmeric
2. Synthetic Indicators - These are the chemical substance prepare in laboratories.
Ex- Phenolphthalein, Methyl Orange
3. Olfactory indicators - These substances have different odour in acids and Bases.
Ex - Onion, clove oil, Vanilla Essence.
Indicators: Substances which change their colour/smell in different types of substances (like acids and bases).
Types of Indicators:
(i) Natural indicators
(ii) Synthetic indicators
(iii) Olfactory indicators
(i) Natural indicators: Found in nature in plants. Examples: Litmus, red cabbage leaves extract, flowers of hydrangea plant, turmeric.
(ii) Synthetic indicators: These are chemical substances. Examples: Methyl orange, phenolphthalein.
(iii) Olfactory indicators: These substances have different odour in acid and bases.Acid
Acidvijayalakmi shankar
油
This document contains questions and answers about acids, bases, and salts. It defines acids as sour substances and bases as bitter, soapy substances. Examples of acids include hydrochloric acid and citric acid, while bases include baking soda and soap. Indicators are substances that change color in acids and bases, helping to distinguish between them. Common indicators mentioned are litmus, turmeric, and phenolphthalein. Neutralization reactions occur when acids and bases react, forming salts and water. Salts can be acidic, basic, or neutral depending on their composition. Antacids contain bases and are used to relieve acid indigestion.Chemistry in the kitchen
Chemistry in the kitchenSheila Grace Tan
油
The document provides instructions for making red cabbage indicator solution and using it to test the pH of household substances. It explains that red cabbage contains natural pH indicators that change color based on whether a solution is acidic or basic. A procedure is given for boiling and straining red cabbage to produce the indicator solution. The document then discusses pH scales and uses of pH indicators before listing the pH values of various common acids and bases.Chemistry in the kitchen
Chemistry in the kitchenSheila Grace Tan
油
The document provides instructions for making red cabbage indicator solution and using it to test the pH of household substances. It explains that red cabbage contains natural pH indicators that change color based on whether a solution is acidic or basic. A procedure is given for chopping and boiling red cabbage to produce a liquid that can be used to determine if a substance has a pH below or above 7, indicating acidity or alkalinity. Common household items are listed along with their typical pH values.Recently uploaded (20)
EDL 290F Week 3 - Mountaintop Views (2025).pdf
EDL 290F Week 3 - Mountaintop Views (2025).pdfLiz Walsh-Trevino
油
EDL 290F Week 3 - Mountaintop Views (2025).pdf
A PPT Presentation on The Princess and the God: A tale of ancient India by A...
A PPT Presentation on The Princess and the God: A tale of ancient India by A...Beena E S
油
A PPT Presentation on The Princess and the God: A tale of ancient India by Aaron Shepard
Principle and Practices of Animal Breeding || Boby Basnet
Principle and Practices of Animal Breeding || Boby BasnetBoby Basnet
油
Principle and Practices of Animal Breeding Full Note
|| Assistant Professor Boby Basnet ||IAAS || AFU || PU || FUAPM People Interest Network Conference - Tim Lyons - The neurological levels ...
APM People Interest Network Conference - Tim Lyons - The neurological levels ...Association for Project Management
油
APM People Interest Network Conference 2025
-Autonomy, Teams and Tension: Projects under stress
-Tim Lyons
-The neurological levels of
team-working: Harmony and tensions
With a background in projects spanning more than 40 years, Tim Lyons specialised in the delivery of large, complex, multi-disciplinary programmes for clients including Crossrail, Network Rail, ExxonMobil, Siemens and in patent development. His first career was in broadcasting, where he designed and built commercial radio station studios in Manchester, Cardiff and Bristol, also working as a presenter and programme producer. Tim now writes and presents extensively on matters relating to the human and neurological aspects of projects, including communication, ethics and coaching. He holds a Masters degree in NLP, is an NLP Master Practitioner and International Coach. He is the Deputy Lead for APMs People Interest Network.
Session | The Neurological Levels of Team-working: Harmony and Tensions
Understanding how teams really work at conscious and unconscious levels is critical to a harmonious workplace. This session uncovers what those levels are, how to use them to detect and avoid tensions and how to smooth the management of change by checking you have considered all of them.Eng7-Q4-Lesson 1 Part 1 Understanding Discipline-Specific Words, Voice, and T...
Eng7-Q4-Lesson 1 Part 1 Understanding Discipline-Specific Words, Voice, and T...sandynavergas1
油
Understanding Discipline-Specific Words, Voice, and Technical TermsComputer Application in Business (commerce)
Computer Application in Business (commerce)Sudar Sudar
油
The main objectives
1. To introduce the concept of computer and its various parts. 2. To explain the concept of data base management system and Management information system.
3. To provide insight about networking and basics of internet
Recall various terms of computer and its part
Understand the meaning of software, operating system, programming language and its features
Comparing Data Vs Information and its management system Understanding about various concepts of management information system
Explain about networking and elements based on internet
1. Recall the various concepts relating to computer and its various parts
2 Understand the meaning of softwares, operating system etc
3 Understanding the meaning and utility of database management system
4 Evaluate the various aspects of management information system
5 Generating more ideas regarding the use of internet for business purpose SOCIAL CHANGE(a change in the institutional and normative structure of societ...
SOCIAL CHANGE(a change in the institutional and normative structure of societ...DrNidhiAgarwal
油
This PPT is showing the effect of social changes in human life and it is very understandable to the students with easy language.in this contents are Itroduction, definition,Factors affecting social changes ,Main technological factors, Social change and stress , what is eustress and how social changes give impact of the human's life.
How to Setup WhatsApp in Odoo 17 - Odoo 際際滷s
How to Setup WhatsApp in Odoo 17 - Odoo 際際滷sCeline George
油
Integrate WhatsApp into Odoo using the WhatsApp Business API or third-party modules to enhance communication. This integration enables automated messaging and customer interaction management within Odoo 17.The Constitution, Government and Law making bodies .
The Constitution, Government and Law making bodies .saanidhyapatel09
油
This PowerPoint presentation provides an insightful overview of the Constitution, covering its key principles, features, and significance. It explains the fundamental rights, duties, structure of government, and the importance of constitutional law in governance. Ideal for students, educators, and anyone interested in understanding the foundation of a nations legal framework.
Useful environment methods in Odoo 18 - Odoo 際際滷s
Useful environment methods in Odoo 18 - Odoo 際際滷sCeline George
油
In this slide well discuss on the useful environment methods in Odoo 18. In Odoo 18, environment methods play a crucial role in simplifying model interactions and enhancing data processing within the ORM framework.The Dravidian Languages: Tamil, Telugu, Kannada, Malayalam, Brahui, Kuvi, Tulu
The Dravidian Languages: Tamil, Telugu, Kannada, Malayalam, Brahui, Kuvi, TuluDrIArulAram
油
The Dravidian Languages by Arul AramHow to use Init Hooks in Odoo 18 - Odoo 際際滷s
How to use Init Hooks in Odoo 18 - Odoo 際際滷sCeline George
油
In this slide, well discuss on how to use Init Hooks in Odoo 18. In Odoo, Init Hooks are essential functions specified as strings in the __init__ file of a module.Rass MELAI : an Internet MELA Quiz Finals - El Dorado 2025
Rass MELAI : an Internet MELA Quiz Finals - El Dorado 2025Conquiztadors- the Quiz Society of Sri Venkateswara College
油
Finals of Rass MELAI : a Music, Entertainment, Literature, Arts and Internet Culture Quiz organized by Conquiztadors, the Quiz society of Sri Venkateswara College under their annual quizzing fest El Dorado 2025. 
Adventure Activities Final By H R Gohil Sir
Adventure Activities Final By H R Gohil SirGUJARATCOMMERCECOLLE
油
Adventure Activities Final By H R Gohil SirAPM People Interest Network Conference - Tim Lyons - The neurological levels ...
APM People Interest Network Conference - Tim Lyons - The neurological levels ...Association for Project Management
油
Rass MELAI : an Internet MELA Quiz Finals - El Dorado 2025
Rass MELAI : an Internet MELA Quiz Finals - El Dorado 2025Conquiztadors- the Quiz Society of Sri Venkateswara College
油
Acids and bases
- 2. ACIDS Acids are those substances which are sour in taste, produce burning sensation on touching and which turn blue litmus to red. Examples Citric acid, oxalic acid, hydrochloric acid. Curd, lemon juice, orange juice and vinegar taste sour. These substances taste sour because they contain acids. The chemical nature of such substances is a acidic. The word acid comes from the Latin word acere which means sour.
- 3. ACIDS
- 4. NAME OF ACID FOUND IN Acetic Acid Vinegar Formic acid Ants sting Citric Acid Citrus foods such as oranges, lemons etc Lactic Acid Curd Oxalic Acid Spinach Ascorbic Acid (Vit C) Amla, citrus fuits Tartaric Acid Tamarid, grapes, unripe mango etc
- 5. Bases are those substances which are bitter in taste, are soapy to touch and which turn red litmus to blue. Example Sodium Hydroxide, Potassium hydroxide etc. The nature of such substances is said to be basic. 5
- 6. NAME OF BASES FOUND IN Calcium Hydroxide Lime Water Ammonium Hydroxide Window Cleaner Sodium Hydroxide/Potassium Hydroxide Soap Magnesium Hydroxide Milk of Magnesia
- 7. The special substances which are used to test whether a substance is acidic or basic are known as indicators The indicators change color when added to a solution containing an acidic or a basic substance. Some of the naturally occurring indicators are turmeric, litmus, china rose petals etc. 7
- 9. Acids turns blue litmus red taste sour Acids corrode metals Bases turns red litmus blue taste bitter Feel Slipper Most hand soaps and drain cleaners are bases
- 10. TEST SOLUTION CHINA ROSE INDICATOR TURMERIC INDICATOR LITMUS SOLUTION BLUE/RED HCL (Hydrochloric Acid) Red No change Blue to Red NAoH Sodium Hydroxide Green Red Red to Blue Soap solution Green Red Red to Blue Baking Powder Green Red Red to Blue Lemon Juice/ Tomato Juice Red No Change Blue to Red Vinegar Red No Change Blue to Red Sugar No Change No Change No Change
- 11. The reaction between an acid and a base is known as neutralization. Salt and water are produced in this process with the evolution of heat. In neutralization reaction heat is always produced or evolved. In neutralization reaction a new substance is formed. This is called salt. Salt may be acidic, basic or neutral in nature.
- 12. Insect Stings Bee stings are acidic and can be neutralized with baking soda. Wasp Stings are alkaline and can be neutralized with Vinegar. Indigestion Our Stomach carriers around hydrochloric acid. Too much of this leads to indigestion. To cure indigestion, you can neutralize the excess acid with Milk of Magnesia or take antacid
- 13. Soil Treatment When soils are too acidic they can be treated with slaked lime, chalk or quicklime, all alkalis. Plants and Crops grow best in neutral soils. Factory waste Liquid waste from factories is often acidic. If it reaches a river it will destroy and kill sea life of many forms. Neutralizing the waste slaked lime can prevent this.