A chemical reaction is a process in which one or more substances are changed into one or more new substances. A chemical equation is a rep...
A chemical reaction is a process in which one or more substances are changed into one or more new substances.
A chemical equation is a representation of the identities and quantities of the substances involved in a chemical reaction.
We use chemical equations to calculate how much of each reactant is needed for a reaction and to predict how much product is expected. Before making these calculations the chemical equation must be balanced, if not the calculation will be inaccurate.