Chapter 7 and Chapter 8 Test

Which of the following is a physical property?

• reactivity with oxygen

• malleability

• reactivity with an acid

• flammability

Which of the following statements about density is TRUE?

• density depends on mass and volume

• density is weight per unit volume

• density is measured in milliliters

• density is a chemical property

During physical changes, matter always retains its

• size

• identity

• state

• texture

One way to compare the densities of oil and water is to pour the liquids into a glass container and observe how they

• change color

• evaporate quickly

• separate into layers

• create an odor

Which of the following is an example of a physical change?

• a copper penny turning green

• a cake baking in the oven

• a popsicle melting

• a car rusting

Flammability and reactivity are _______________ of a substance.

• physical properties

• chemical properties

• physical changes

• chemical changes

Color, odor, mass, and volume are _________ of an object.

• identical properties

• chemical properties

• physical properties

• conductive properties

There are __________ states of matter

• 2

• 3

• 4

• 5

An ice cube is placed in the sun. Later there is a puddle and then later the puddle is gone. This is an example of a:

• physical property

• chemical property

• physical change

• chemical change

Chocolate syrup is dissolved in milk. This is an example of a

• physical change

• chemical change

• physical property

• chemical property