Chemical and Physical Changes flashcard

Front

What is the newly formed matter from a chemical reaction called?

Back

Product

Front

What type of change in matter produces new kinds of matter with different properties?

Back

Chemical change

Front

What causes water to change states from liquid to solid to gas?

Back

Temperature

Front

Why is rusting of an iron bar in the rain considered a chemical change?

Back

A new substance forms, rust, on the iron.

Front

What do you create when you combine two or more substances that each keep their physical properties?

Back

Mixture

Front

What is a physical change?

Back

A change that does not produce new substances, such as melting or freezing.

Front

What is a chemical change?

Back

A change that produces new substances with different properties, such as burning or rusting.

Front

What is a reactant?

Back

A substance that is present at the start of a chemical reaction.

Front

What is a mixture?

Back

A combination of two or more substances where each retains its own properties.

Front

What happens to the properties of substances in a chemical change?

Back

The properties change because new substances are formed.