Subscript appears outside of the parentheses. When a subscript appears outside of the parentheses, it indicates that all of the elements inside the parentheses should be multiplied by that subscript. For example, the formulas for the compound Ca(NO3), indicates that there is one calcium atom, two nitrogen atoms, and six oxygen atoms.

1. Define reactant

2. Define product

3. What does the arrow mean in an equation?

4. What is the Law of Conservation of Matter?
atoms of hydrogen

5. If there are 6 atoms of hydrogen in the reactants then there must be
in the products.

6. What 2 things does a chemical formula tell you?