SCORE 006

CHEMICAL EQUATIONS tell us these things about a chemical reaction:
  1. the reactants and products
  2. sometimes the state of the substances (g), (aq),(s), (ppt), etc.
  3. the amounts of each substance that is used (the reactants) or produced (the products).

We have discussed items 1 and 2 above, in class. Now we are going to focus on the quantities of chemicals in a reaction.

The fact that equal numbers of each type of atom must appear in the reactants and the products of a chemical reaction is called the Law of the Conservation of