Question

1. which term means “a combination of two or more substances that keep their identities”?

a. matter
b. mixture
c. element
d. compound

1. a substance that forms a vapor is generally in what physical state at room temperature?

a. solid
b. gas
c. liquid
d. liquid or solid

1. which term refers to the amount of space taken up by an object?

a. temperature
b. mass
c. solution
d. volume

1. which state of matter takes both the shape and volume of its container?

a. both b and c
b. liquid only
c. gas only
d. solid

1. which state of matter is characterized by having an indefinite shape, but a definite volume?

a. both b and c
b. gas
c. solid only
d. liquid only

Explanation:

• For question 7: A mixture is a combination of two or more substances that retain their identities.
• For question 8: A substance that forms a vapor is usually a liquid at room - temperature as liquids can evaporate to form vapors.
• For question 9: Volume is the amount of space taken up by an object.
• For question 10: Gases take both the shape and volume of their container as they expand to fill the available space.
• For question 11: Liquids have an indefinite shape (take the shape of their container) but a definite volume.

Answer:

1. b. mixture
2. c. liquid
3. d. volume
4. c. gas only
5. d. liquid only