Chemical Equations

The substances that undergo a chemical change, found on the left side of the equation.

A written description of a chemical reaction.

The smaller number to the lower right of an element that shows the number of atoms of that element in a molecule.

The substances that are formed as a result of a chemical reaction, found on the right side of the equation.

One or two letters that represent an element on the periodic table.

The number placed in front of a compound that indicates how many molecules of that compound are present.

In a chemical reaction, mass is neither created nor destroyed; it is conserved.

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

Reactants are the starting materials in a chemical reaction, while products are the substances formed.

A way of expressing the composition of a compound using symbols and numbers.