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This document defines and describes various chemistry concepts including: 1. Distillation is a process that separates substances in a solution based on their boiling points. Evaporation is the process where a liquid becomes a gas. 2. Evidence of a chemical reaction includes a change in color, formation of a gas, or formation of a precipitate. 3. Mixtures contain two or more substances that are not chemically combined and can be separated by physical means, while elements and compounds have fixed compositions.
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The document discusses the properties and types of matter, including the three states of matter (solid, liquid, gas), mixtures and their separation, physical and chemical properties, physical and chemical changes, and the laws of conservation of mass, definite proportions, and multiple proportions as they relate to matter and chemical reactions. Elements are pure substances that cannot be broken down further, while compounds are combinations of two or more elements that have properties different from their component elements. Matter is anything that has mass and takes up space.Chap 2 chem & phy properties
Chap 2 chem & phy propertiestracyconover
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Physical properties describe characteristics that can be observed or measured without changing the identity of a substance. Examples include boiling point, freezing point, state at room temperature, color, odor, and hardness. Physical changes alter the substance's physical form through processes like melting, freezing, boiling, but do not change its chemical identity. Chemical properties describe a substance's ability to undergo chemical reactions and change identity, like flammability or reactivity. Chemical changes result in new substances with different chemical compositions and properties.Chap 2 chem & phy properties
Chap 2 chem & phy propertiestracyconover
油
Physical properties describe characteristics that can be observed or measured without changing the identity of a substance. Examples include boiling point, freezing point, state at room temperature, color, odor, and hardness. Physical changes alter the substance's physical form through processes like melting, freezing, boiling, but do not change its chemical identity. Chemical properties describe a substance's ability to undergo chemical reactions and change identity, like flammability or reactivity. Chemical changes result in new substances with different properties.Chap 2 chem & phy properties
Chap 2 chem & phy propertiestracyconover
油
Physical properties describe characteristics that can be observed or measured without changing the identity of a substance. Examples include boiling point, freezing point, state at room temperature, color, odor, and hardness. Physical changes alter the substance's physical form through processes like melting, freezing, boiling, but do not change its chemical identity. Chemical properties describe a substance's ability to undergo chemical reactions and change identity, like flammability or reactivity. Chemical changes result in new substances with different chemical compositions and properties.Basics of Matter.ppt
Basics of Matter.pptGraceAceveda
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This document discusses physical and chemical changes, pure substances, mixtures, and states of matter. It defines physical changes as changes in a substance's state or form without changing its chemical composition, and chemical changes as the formation of new substances through chemical reactions. Mixtures are combinations of substances that are not chemically bonded and can be separated by physical means. The four common states of matter are solids, liquids, gases, and plasma, which differ in the arrangement and movement of their particles according to the kinetic molecular theory.Chemistry review
Chemistry reviewBeverley Sutton
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Matter and energy are the fundamental building blocks of chemistry. The periodic table organizes elements based on atomic structure and properties to help understand relationships between different types of matter. Physical changes alter a substance's state without changing its chemical makeup, while chemical changes form new substances through atomic rearrangements. Scientific models are used to represent unobservable phenomena and further our understanding of how matter behaves.Matter
Matterpalmanojav
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The document discusses the different states and properties of matter. It defines matter as anything that has mass and occupies space, and identifies the three normal states as solid, liquid, and gas. At extremely high or low temperatures, plasma and Bose-Einstein condensate exist as the 4th and 5th states. Matter has physical properties like mass, volume, and extensive/intensive properties, as well as chemical properties regarding its composition and ability to undergo chemical reactions. Physical changes alter the state of matter without changing composition, while chemical changes result in new substances through reactions. Examples of corrosion show unwanted oxidation of metals.
classification-of-matter.pptx
classification-of-matter.pptxJeanMaeSabusap
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This document discusses the classification and separation of matter. It defines pure substances as elements or compounds that have a uniform composition and cannot be separated into simpler substances. Mixtures are physical combinations of pure substances that retain their identities and can be separated. Homogeneous mixtures are uniform throughout while heterogeneous mixtures have distinct phases. Common separation techniques for mixtures include filtration, evaporation, and distillation.Keynote!!
- 1. Chapter 2.1 and 2.2 By: Emma Cohen
- 2. Distillation A process that separates substances in a solution by their boiling points.
- 3. Evaporation The process in which a liquid becomes a gas. A process used to isolate a solid dissolved in a liquid property: solubility
- 4. Evidence of a Chemical Reaction A change in color The formation of a gas A formation of a precipitate A change in the temperature
- 5. Flammability materials that burn and can be used as fuel.
- 6. How to classify matter Matter pure substance mixture homogenous heterogenous Element Compound mixture mixture
- 7. Mixtures Two or more substances that are not chemically combined with each other and be separated by Physical means. The substances in a mixture retain their characteristic properties.
- 8. Elements The simplest form of pure substances. A element has a 鍖xed composition because it contains only one type of atom
- 9. Physical Properties Viscosity Conductivity Malleability Hardness Melting Point Boiling Point Density
- 10. Compound Two or more elements that are chemically combined. In a 鍖xed proportion.
- 11. Colloid A mixture that is uniform throughout.
- 12. Distillation A process that separates the substances in a solution based on boiling points.
- 13. Filtration A process that separates materials based on the size of their particles and or solubility
- 14. Physical v. Chemical Change Physical change does not have any change in composition. Chemical change does have a change in the composition.
- 15. Reactivity of Hydrogen and Oxygen Hydrogen is explosive, and the density of it is less so the air rises. Oxygen will ignite an embruing 鍖ame, and the density is greater so the air sinks.
- 17. What is the difference between a physical change and a chemical change?
- 18. How can you tell if it is a chemical change?
- 19. How would you test for a physical property?
- 20. What is the difference between a pure substance and a mixture?
- 21. What are 3 examples of physical properties?