UNIT 2 TEST_MODIFIED: Properties and Types of Matter

Front

Phase changes are examples of _________ changes.

Back

physical

Front

What is the density of an object with a mass of 12 grams and a volume of 2.5 centimeters cubed?

Back

4.8 g/cm³

Front

Which of the following is an element?

Back

oxygen

Front

Compounds can be broken down into their elements by:

Back

chemical changes

Front

Which of the following is an example of a chemical property?

Back

reactivity

Front

Define matter.

Back

Matter is anything that has mass and takes up space.

Front

What is the difference between a physical change and a chemical change?

Back

A physical change alters the form of a substance but not its chemical composition, while a chemical change results in the formation of new substances.

Front

What is an example of a physical change?

Back

Melting ice is an example of a physical change.

Front

What is the formula for density?

Back

Density = Mass/Volume.

Front

What is a mixture?

Back

A mixture is a combination of two or more substances that retain their individual properties.