1. Welcome to AP chemistry review
Day 1

2. Matter & Measurement
Chapter 1

3. Chemical and physical processes
A combination of sand, salt, and water is an example of a ________.
A) homogeneous mixture
B) heterogeneous mixture
C) compound
D) pure substance
E) solid

4. Chemical and physical processes
A combination of sand, salt, and water is an example of a ________.
A) homogeneous mixture
B) heterogeneous mixture
C) compound
D) pure substance
E) solid

5. Chemical and physical processes
An element cannot ________.
A) be part of a heterogeneous mixture
B) be part of a homogeneous mixture
C) be separated into other substances by chemical means
D) interact with other elements to form compounds
E) be a pure substance

6. Chemical and physical processes
An element cannot ________.
A) be part of a heterogeneous mixture
B) be part of a homogeneous mixture
C) be separated into other substances by chemical means
D) interact with other elements to form compounds
E) be a pure substance

7. Chemical and physical processes
Of the following, only ________ is a chemical reaction.
A) melting of lead
B) dissolving sugar in water
C) tarnishing of silver
D) crushing of stone
E) dropping a penny into a glass of water

8. Chemical and physical processes
Of the following, only ________ is a chemical reaction.
A) melting of lead
B) dissolving sugar in water
C) tarnishing of silver
D) crushing of stone
E) dropping a penny into a glass of water

9. Chemical and physical processes
Which one of the following is the highest temperature?
A) 38 °C
B) 96 °F
C) 302 K
D) none of the above
E) the freezing point of water

10. Chemical and physical processes
Which one of the following is the highest temperature?
A) 38 °C
B) 96 °F
C) 302 K
D) none of the above
E) the freezing point of water

11. Apple juice is an example of a(an)
element.
compound.
homogeneous mixture.
heterogeneous mixture.
Answer: c

12. Apple juice is an example of a(an)
element.
compound.
homogeneous mixture.
heterogeneous mixture.
Answer: c

13. Which of the following is not a pure substance?
water
carbon dioxide
carbon
air
Answer: d

14. Which of the following is not a pure substance?
water
carbon dioxide
carbon
air
Answer: d

15. solids. liquids. gases. All of the above
Solutions may be
solids.
liquids.
gases.
All of the above
Answer: d

16. solids. liquids. gases. All of the above
Solutions may be
solids.
liquids.
gases.
All of the above
Answer: d

17. Descriptions of a sample that are based on the amount of substance are called
physical properties.
chemical properties.
intensive properties.
extensive properties.
Answer: d

18. Descriptions of a sample that are based on the amount of substance are called
physical properties.
chemical properties.
intensive properties.
extensive properties.
Answer: d

19. Properties that describe the way a substance reacts to form other substances are called
physical properties.
chemical properties.
homogeneous properties.
heterogeneous properties.
Answer: b

20. Properties that describe the way a substance reacts to form other substances are called
physical properties.
chemical properties.
homogeneous properties.
heterogeneous properties.
Answer: b

21. Acetic acid that was liquid when stored was solid when a student looked for it on a cold morning. This illustrates
a change in solubility.
a chemical change.
an equilibrium state.
a physical change.
Answer: d

22. Acetic acid that was liquid when stored was solid when a student looked for it on a cold morning. This illustrates
a change in solubility.
a chemical change.
an equilibrium state.
a physical change.
Answer: d