7th Grade Practice Fall final

Front

What is a chemical bond?

Back

A force that holds atoms together.

Front

What happens to the surrounding temperature when an exothermic reaction occurs?

Back

It increases.

Front

What is a molecule?

Back

A group of atoms bonded together.

Front

What happens during a chemical reaction?

Back

Substances change into different substances.

Front

In an endothermic reaction, what happens to the energy?

Back

It is absorbed.

Front

What is an exothermic reaction?

Back

A chemical reaction that releases energy in the form of heat.

Front

What is the law of conservation of mass?

Back

Mass is neither created nor destroyed in a chemical reaction.

Front

What is a reactant?

Back

A substance that undergoes change in a chemical reaction.

Front

What is a product?

Back

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

Front

What is a catalyst?

Back

A substance that speeds up a chemical reaction without being consumed.