Chemical Reactions and Conservation of Mass

The smallest particle of an element that retains its chemical properties.

A chemical equation with the same number of each type of atom on both sides.

A change that produces one or more new substances.

A symbolic representation of a chemical reaction using chemical symbols and formulae.

A combination of symbols and numbers showing the types and numbers of atoms in a substance.

A process in which atoms are rearranged to form new substances.

A one- or two-letter abbreviation representing an element.

A system in which no matter can enter or leave.

A number placed before a chemical formula indicating the number of particles involved in a reaction.

The principle that mass is neither created nor destroyed during ordinary chemical reactions.