Chemical Equations

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Across
  1. 1. when the number of reaction atoms equals the number of product atoms
  2. 5. change during a chemical reaction;found on the left side of a chemical equation
  3. 6. uses chemical formulas and other symbols to summarize a chemical reaction
  4. 7. the substances that are produced during a chemical reaction; found on the right side of a chemical equation
Down
  1. 2. states that in a chemical reaction the total mass of the reactants must equal the total mass of the products
  2. 3. a number placed in the front of a chemical formula; it tells you how many molecules there are of the substance that follows it
  3. 4. the number below the line that tell the number of atoms inside a molecule, cannot be changed