Chemical Reaction

Front

What makes up all substances?

Back

Atoms are the basic building blocks of all substances.

Front

What is an example of a substance?

Back

Table salt (NaCl) is a pure substance.

Front

What are atoms?

Back

Atoms are the tiny pieces that all matter is made of.

Front

What is a property of a substance?

Back

A property is an observable characteristic, such as color, smell, or boiling point.

Front

Is burning wood a chemical or physical change?

Back

Burning wood is a chemical change.

Front

What is a molecule?

Back

A molecule is a group of two or more atoms bonded together.

Front

What is a chemical reaction?

Back

A chemical reaction is a process where substances change into new substances.

Front

What is a reactant?

Back

A reactant is a substance that undergoes change during a chemical reaction.

Front

What is a product in a chemical reaction?

Back

A product is a substance that is formed as a result of a chemical reaction.

Front

What is the law of conservation of mass?

Back

The law states that mass is neither created nor destroyed in a chemical reaction.