The Chemistry of Wordplay

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Across
  1. 4. Mass of a particular isotope of an atom
  2. 7. The sum of atomic masses of the elements in a compound
  3. 8. The sum of the products of the relative atomic masses and percent
  4. 9. It is the numbers before the chemical formulas on the reactant and product side of the equation
  5. 10. The relative ratios of elements in a compound
Down
  1. 1. It shows what happens in a chemical reaction.
  2. 2. A substance that takes part in and undergoes change during a reaction
  3. 3. The exact numbers of atoms that form a compound
  4. 5. It is a substance that is present at the end of a chemical reaction
  5. 6. It is named after an Italian lawyer