Chemical Reactions Vocabulary

Front

What is a precipitate?

Back

A solid that forms when one liquid is poured into another.

Front

What type of reaction releases energy in the form of heat?

Back

An exothermic reaction.

Front

What type of reaction absorbs energy in the form of heat?

Back

An endothermic reaction.

Front

What is one sign that a chemical reaction is taking place?

Back

Bubbles are produced.

Front

What must be true about the number of atoms in a chemical reaction?

Back

The number of atoms you begin with must be the same as the number of atoms you end with.

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 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

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

Front

What does it mean if a reaction is balanced?

Back

The number of atoms for each element is the same on both sides of the equation.

Front

What is the law of conservation of mass?

Back

Mass is neither created nor destroyed in a chemical reaction.