Chemical Reactions

Front

What are the signs that a chemical reaction has occurred?

Back

Color change, Odor change, Properties change, All of the above.

Front

What kind of scientist studies chemical reactions to create new materials?

Back

Materials scientist.

Front

What is a molecule?

Back

A molecule is made of more than one atom.

Front

What are the properties of matter?

Back

Magnetism, Color, Odor, All of the above.

Front

What is an example of a chemical change?

Back

Burning wood, Rust on a car, Cooking food, All of the above.

Front

What is a chemical reaction?

Back

A process that involves the rearrangement of the molecular or ionic structure of a substance.

Front

What is the law of conservation of mass?

Back

In a chemical reaction, mass is neither created nor destroyed.

Front

What is an element?

Back

A pure substance that cannot be broken down into simpler substances by chemical means.

Front

What is a reactant?

Back

A substance that takes part in and undergoes change during a reaction.

Front

What is a product in a chemical reaction?

Back

The substances that are formed as a result of a chemical reaction.