SAT Chemistry Practice Test: Gases and the Gas Laws 1

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Question 10 questions

Time 7 minutes

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1. The most abundant element in Earth's crust is

A. sodium
B. oxygen
C. silicon
D. aluminum

2. A compound that can be decomposed to produce oxygen gas in the lab is

A. MnO2
C. CO2
D. KClO3

3. In the usual laboratory preparation equation for the reaction in question 2, what is the coefficient of O2?

A. 1
B. 2
C. 3
D. 4

4. In the graphic representation of the energy contents of the reactants and the resulting products in an exothermic reaction, the energy content would be

A. higher for the reactants
B. higher for the products
C. the same for both
D. impossible to determine

5. The process of separating components of a mixture by making use of the difference in their boiling points is called

A. destructive distillation
B. displacement
C. fractional distillation
D. filtration

6. When oxygen combines with an element to form a compound, the resulting compound is called

A. a salt
B. an oxide
C. oxidation
D. an oxalate

7. According to the activity chart of metals, which metal would react most vigorously in a dilute acid solution?

A. zinc
B. iron
C. aluminum
D. magnesium

8. Graham's Law refers to

A. boiling points of gases
B. gaseous diffusion
C. gas compression problems
D. volume changes of gases when the temperature changes

9. When 200 milliliters of a gas at constant pressure is heated, its volume

A. increases
B. decreases
C. remains unchanged

10. When 200 milliliters of a gas at constant pressure is heated from 0°C to 100°C, the volume must be multiplied by

A. 0/100
B. 100/0
C. 273/373
D. 373/273