Chemical Reactions

Front

Reactants

Back

Substances that start a chemical reaction.

Front

Products

Back

Substances that are produced in a chemical reaction.

Front

Atoms

Back

The basic unit of a chemical element.

Front

Elements

Back

Pure substances consisting of only one type of atom.

Front

Molecules

Back

Two or more atoms bonded together.

Front

Compounds

Back

Substances formed when two or more elements are chemically bonded together.

Front

Coefficient

Back

A number placed in front of a chemical formula to balance a chemical equation.

Front

Subscript

Back

A number written slightly below and to the right of a chemical symbol, indicating the number of atoms of an element in a molecule.

Front

Combustion Reaction

Back

A chemical reaction that occurs when a substance reacts with oxygen, releasing energy, CO2 & H2O.

Front

Double Replacement Reaction

Back

A chemical reaction where two compounds exchange ions to form two new compounds.