Ch8 Chemical Equations and Reactions

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Across
  1. 4. using electric current to decompose a substance
  2. 5. represents the identities and relative molecular amounts in a chemical reaction.
  3. 7. represented by two arrow pointing in opposite directions which show the products reforming the original reactants
  4. 8. a solid that is formed from a chemical reaction in solution and that separates from the solution
  5. 10. an equation that is represented by using words in a chemical reaction
  6. 11. a reaction which combines with oxygen, releasing lots of energy in the form of light and hear
  7. 12. where only one element replaces another element in a compound
  8. 13. two or more substances combine to make one new compound
Down
  1. 1. both the products and reactants of a chemical reaction using formulas or symbols
  2. 2. when two ions from different compounds exchange places in an aqueous solution which forms two new compounds
  3. 3. when a single compound reacts to form two or more simple substances
  4. 6. a list of elements organized by how they undergo certain chemical reactions
  5. 9. the whole number that appears in front of a formula in a chemical equation