Conservation of Matter: Mass is neither created nor destroyed during a chemical reaction.
- Matter is conserved --> TYPE of atoms does not change
- Nothing is created nor destroyed
- Atoms are re-arranged, they are not created or destroyed
- Mass of reactants = Mass of Products
- Balancing equations- make sure there are the same number of each type of atom in the products of the reactants
- When there is no subscript or coefficient, it is understand the subscript or coefficient is 1