UNIT 2 TEST: Properties and Types of Matter

Substances that cannot be broken down into other substances by ordinary chemical or

physical changes are classified as:

• elements

• compounds

• mixtures

Using the rules for selecting symbols for the elements, which of the following could

NOT be a correct symbol for a chemical element?

• Ch

• CA

• A

• Cc

The phase change from liquid to gas is called:

• sublimation

• freezing

• condensation

• boiling

Tags

NGSS.MS-PS1-4

The phase change from liquid to solid is called:

• sublimation

• freezing

• condensation

• boiling

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Pure substances may be either __________ or compounds.

• mixtures

• elements

• solutions

• heterogeneous materials

___________ is NOT a pure substance.

• Sulfur

• Air

• Sugar

• CO₂

___________ combine in definite proportions.

• Elements

• Compounds

• Mixtures

Tags

NGSS.MS-PS1-5

Distillation is used to separate liquids with different:

• freezing points

• solubilities

• densities

• boiling points

A mixture of sand and water would best be separated by:

• magnetism

• distillation

• filtration

• sight

The melting of candle wax is classified as a physical change because it:

• produces no new substance

• transfers energy

• changes the chemical properties of wax

• absorbs heat

Tags

NGSS.MS-PS1-4