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GENERAL CHEMISTRY 1
1. Which of the following characteristics best
describes a SOLID?
A.It has no definite shape
B.It has definite shape and volume
C.It has definite shape and no definite volume
D.It has definite volume and no definite shape
2. Two atoms, 127Hg and 131Hg are
isotopes because they have the same
number of ______ but different numbers of
neutrons.
A. atomic number C. atomic weight
B. electrons D. protons
3. Which of the following
formulas represents a molecular
compound?
A. Xe C. H2O2
B. HO D. CH2O
4. If the lines in the structural formula shows
the bonding of the elements in a compound,
how many bonds do two lines in a structural
formula indicate?
A. double C. single
B. lone pair D. triple
5. Name the covalent
compound:
C6F8
6. 3.5 mol of He  g
7. 40 g of O  no. of
O atoms
8. Calculate the molar
mass of NH3
9. Calculate the molar
mass of
C2F2Cl4.6H2O
10. Balance the chemical
equation:
C2H5OH + O2  CO2 +
H2
11. A balloon filled with He
gas has a volume of 4.0x10^3
at 23C. What volume will the
balloon occupy at 50C?
12. A compound is found to consist of 43.64%
Phosphorus and 56.36% Oxygen. The molar mass
of the compound is 283.88 g/mol. What is the
empirical formula of the compound? (P = 30.97, O =
16)
A. PO2 C. P205
B. P204 D. P4010
13. Before performing an experiment Mateo calculated
that the reaction of 20.7 grams of CaCO3 will produce
11.59 grams CaO. After performing the experiment, he
found out that only 6.81 grams of CaO was produced.
Calculate the success rate of the experiment.
A. 58% C. 58. 76%
B. 58. 50% D. 59%
14. In the reaction 2H2 + O2 2H2O, what
is the mole ratio of oxygen to water?
A. 2: 1 C. 1: 4
B. 8: 1 D. 1: 2
15. In building bicycle, you need 2 wheels, bicycle
frame, seat and a handle bar. How many bicycles
can be made in 16 wheels, 10 seats, 9 frames, and
10 handle bars. Given the available parts, which of
the following is/are set as the limiting reactant/s?
A. bicycle frames C. seats
B. handle bars D. wheels
16. Daltons Partial Pressure can be
calculated by using which of the following?
A. molar mass C. mole conversion
B. mole fraction D. mass percentage
17. Assume that excess CuO reacts with
5.6 L H2 at STP according to the following
equation: CuO + H2  Cu + H2O, what will
be the mole value?
A. 22.4 mol C. 0.56 mol
B. 5.6 mol D. 0.25 mol
18. Relationship of volume
and pressure in Boyles
Law?
19. Value of constant in
Ideal Gas Law?
20. How to compute
partial pressure?

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Reviewer in general chemistry lesson 1 and 2

  • 2. 1. Which of the following characteristics best describes a SOLID? A.It has no definite shape B.It has definite shape and volume C.It has definite shape and no definite volume D.It has definite volume and no definite shape
  • 3. 2. Two atoms, 127Hg and 131Hg are isotopes because they have the same number of ______ but different numbers of neutrons. A. atomic number C. atomic weight B. electrons D. protons
  • 4. 3. Which of the following formulas represents a molecular compound? A. Xe C. H2O2 B. HO D. CH2O
  • 5. 4. If the lines in the structural formula shows the bonding of the elements in a compound, how many bonds do two lines in a structural formula indicate? A. double C. single B. lone pair D. triple
  • 6. 5. Name the covalent compound: C6F8
  • 7. 6. 3.5 mol of He g
  • 8. 7. 40 g of O no. of O atoms
  • 9. 8. Calculate the molar mass of NH3
  • 10. 9. Calculate the molar mass of C2F2Cl4.6H2O
  • 11. 10. Balance the chemical equation: C2H5OH + O2 CO2 + H2
  • 12. 11. A balloon filled with He gas has a volume of 4.0x10^3 at 23C. What volume will the balloon occupy at 50C?
  • 13. 12. A compound is found to consist of 43.64% Phosphorus and 56.36% Oxygen. The molar mass of the compound is 283.88 g/mol. What is the empirical formula of the compound? (P = 30.97, O = 16) A. PO2 C. P205 B. P204 D. P4010
  • 14. 13. Before performing an experiment Mateo calculated that the reaction of 20.7 grams of CaCO3 will produce 11.59 grams CaO. After performing the experiment, he found out that only 6.81 grams of CaO was produced. Calculate the success rate of the experiment. A. 58% C. 58. 76% B. 58. 50% D. 59%
  • 15. 14. In the reaction 2H2 + O2 2H2O, what is the mole ratio of oxygen to water? A. 2: 1 C. 1: 4 B. 8: 1 D. 1: 2
  • 16. 15. In building bicycle, you need 2 wheels, bicycle frame, seat and a handle bar. How many bicycles can be made in 16 wheels, 10 seats, 9 frames, and 10 handle bars. Given the available parts, which of the following is/are set as the limiting reactant/s? A. bicycle frames C. seats B. handle bars D. wheels
  • 17. 16. Daltons Partial Pressure can be calculated by using which of the following? A. molar mass C. mole conversion B. mole fraction D. mass percentage
  • 18. 17. Assume that excess CuO reacts with 5.6 L H2 at STP according to the following equation: CuO + H2 Cu + H2O, what will be the mole value? A. 22.4 mol C. 0.56 mol B. 5.6 mol D. 0.25 mol
  • 19. 18. Relationship of volume and pressure in Boyles Law?
  • 20. 19. Value of constant in Ideal Gas Law?
  • 21. 20. How to compute partial pressure?