Extension Activity

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Across
  1. 2. a substance that is present at the end of a chemical reaction
  2. 5. matter can be neither created nor destroyed
  3. 6. a substance that is present at the start of a chemical reaction.
  4. 7. the amount of pure and dry product yielded in a reaction
  5. 8. a number placed in front of a chemical symbol or formula
  6. 9. symbolic representations of chemical reactions in which the reactants and the products are expressed in terms of their respective chemical formula
Down
  1. 1. If the number of atoms of each element in reactants is not equal to the number of atoms of each element present in product
  2. 3. a small number written at the bottom of the symbol.
  3. 4. a chemical equation in which mass is conserved and there are equal numbers of atoms of each element on both sides of the equation