Chm - 151 Crossword

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Across
  1. 2. atoms with identical atomic numbers but have different mass numbers
  2. 5. physical property that describes "matter/volume"
  3. 7. negative charge
  4. 8. element or compound
  5. 10. reaction with oxygen with the products of carbon dioxide and steam
  6. 12. two or more pure substances
  7. 13. predictable pattern of a cycle
  8. 14. useful for identifying a chemical
  9. 15. smallest whole number ratio of cation to anion
Down
  1. 1. proton and hydroxide react to form this...
  2. 3. ability of a nucleus to attract bonding electrons to itself
  3. 4. atoms held together by covalent bonds
  4. 6. an amount or physical quantity of matter/energy
  5. 9. atoms/molecules where # of protons does not equal # of electrons
  6. 11. indirect measure of heat