Conservation of Mass/Balancing Equations Crossword

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Across
  1. 5. ______ are the elements on the left side of the arrow in a chemical reaction.
  2. 6. We add ______ to balance a chemical equation.
  3. 7. _____ tell us the number of atoms of an element present in a chemical equation.
Down
  1. 1. _______ are the elements on the right side of the arrow in a chemical reaction.
  2. 2. Matter cannot be created or destroyed is the conservation of _____.
  3. 3. The mass of the products and reactants of any reaction are the _____.
  4. 4. In order to an equation to be balanced the number of _____ must be the same on both sides.