7.2 Chemical Reactions & Energy

Front

What are the substances produced during a chemical reaction called?

Back

Products

Front

Define a chemical reaction.

Back

The process that rearranges the molecules of a substance.

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Front

Give an example of a chemical reaction.

Back

Combining steel wool and vinegar.

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Front

What does an endothermic reaction feel like?

Back

Cold.

Tags

NGSS.MS-PS1-4

Front

What happens to heat during an endothermic reaction?

Back

The system absorbs heat.

Tags

NGSS.MS-PS1-4

Front

What is the opposite of an endothermic reaction?

Back

Exothermic reaction.

Tags

NGSS.HS-PS1-4

Front

What is an exothermic reaction?

Back

A chemical reaction that releases heat.

Tags

NGSS.HS-PS1-4

Front

What is the law of conservation of mass in a chemical reaction?

Back

Mass is neither created nor destroyed in a chemical reaction.

Tags

NGSS.MS-PS1-5

Front

What is activation energy?

Back

The minimum energy required for a chemical reaction to occur.

Tags

NGSS.HS-PS1-4

Front

What role do catalysts play in chemical reactions?

Back

They speed up the reaction without being consumed.

Tags

NGSS.HS-PS1-5