6th Grade Chemistry Comprehensive Practice Exam
Name:__________________________
Version 1
Date:___________________
Multiple Choice Exam Questions
1. Evaporation is when
a. A substance changes from a liquid into a solid material.
b. A substance changes from a liquid to a gas (or vapor) naturally.
c. A substance changes from a gas (or vapor) into a liquid.
d. A substance changes from a liquid to gas (or vapor) by any means.
2. The sum of the number of protons and neutrons results in an atom's approximate
a. Atomic number
b. Atomic mass
c. Electrons
d. pH scale
3. Another word for element is a(n)
.
a. Atom
b. Pure substance
c. Atomic substance
d. Solid
4. A material that can be hammered or rolled into flat sheets is considered
a. Ductile
b. Malleable
c. Thermally conductive
d. Reactive
5. What is an Erlenmeyer flask used for?
a. Measuring liquids
b. Holding liquids when heated
c. Containing liquids when mixing
d. Flask used when making a solid ductile or malleable
6. 0.0000003Gm to cm
a. 3000
b. 30000
c. 0.3
d. 3
7. What is the correct formula for titanium (VI) nitride?
a. Ti2N6
b. TiN6
c. Ti2N6
d. TiN2
8. What is the correctly noted compound for Ni2O6?
a. Nickel Oxide
.
6th Grade Chemistry Comprehensive Practice Exam
b. Nickel (III) Oxide
c. Nickel (VI) Oxide
d. Dinickel Hexoxide
9. What is the correctly notated compound for Cd2O
a. Cadmium (II) Oxide
b. Dicadmium Oxide
c. Cadmium Oxide
d. Cadmium (I) Oxide
10. What is the molar mass of Al2(SO4)3?
a. 342.15 g/mol
b. 237.67 g/mol
c. 333.56 g/mol
d. 404.89 g/mol
Free Response Exam Questions
1. Balance the following reactions:
____Al2(SO4)3 + ____Ca(OH)2 → ____Al(OH)3 + ____CaSO4 (1 point)
____H2SO4 + ____HI → ____H2S + ____I2 + ____H2O (1 point)
____Ca3(PO4)2 + ____SiO2 → ____P4O10 + ____CaSiO3 (1 point)
2. Convert 9.69 moles of sulfur to atoms. (2 point)
Answer:
Convert 82 grams of radon to moles of radon. (2 point)
Answer:
Convert 7,200 micrograms of arsenic to atoms. (2 points)
Answer:
Version 1
6th Grade Chemistry Comprehensive Practice Exam
Version 1
3. Fe2(CO3)3 → Fe2O3 + 3CO2
Convert 4.20 moles of Iron (III) Carbonate into grams of Carbon Dioxide (2 point)
Answer:
Convert 69 grams of Iron (III) Carbonate into moles of Iron (III) Oxide (2 point)
Answer:
Convert 69.420 grams of Iron (III) Carbonate into atoms of Carbon Dioxide (2 points)
Answer:
Bonus Questions
Balance the reactions:
____C7H6O2 + ____O2 → ____CO2 + ____H2O (3 points)
For the below reaction(after balancing),
____C10H36 + ____O2 → ____CO2 + ____H2O
Convert 37.1 grams of Pinane (C10H36) to moles of H2O. (1 point)
Answer:
Convert the number of moles of H2O in part A to atoms. (1 point)
Answer: