Unit 5 Crossword

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Across
  1. 2. when a reactant loses electrons
  2. 6. A + BC -> B + AC
  3. 7. tells you how many of an element there is
  4. 8. AB -> A + B
  5. 10. a substance made up of two or more elements
  6. 11. a negatively charged atom
  7. 12. CxHy + O2 → CO2 + H2O
  8. 13. when a reactant gains electrons in the product
Down
  1. 1. molecules made up of two atoms that are the same element
  2. 3. A+B -> AB
  3. 4. AB + CD -> AD + CB
  4. 5. a molecule with an uneven number of protons and electrons which causes them to have a charge
  5. 9. the large number in front of an element