Chemistry Concepts

Front

The number placed in front of a formula in a chemical equation.

Back

Coefficient

Front

The law that states that matter cannot be created or destroyed in a chemical reaction.

Back

Conservation of Mass

Front

A substance that has a pH below 7, turns litmus paper red, and is typically corrosive and sour.

Back

Acid

Front

A substance that increases the rate of a chemical reaction.

Back

Catalyst

Front

A chemical reaction that gives off heat.

Back

Exothermic

Front

A substance that goes into a chemical reaction, on the left side of the arrow.

Back

Reactant

Front

A chemical reaction that absorbs heat.

Back

Endothermic

Front

The number that is written lower, that tells the number of atoms in an element or molecule.

Back

Subscript

Front

A substance that has a pH above 7, turns litmus paper blue, and is typically slippery and bitter.

Back

Base

Front

The substance(s) formed during a chemical reaction, on the right side of the arrow.

Back

Product