Damon

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Across
  1. 2. replacement reaction Reaction where ions from two compounds exchange places
  2. 6. bond A force that holds atoms together in a molecule
  3. 8. Substances present at the start of a chemical reaction
  4. 9. reaction Reaction in which a compound breaks down into simpler substances
  5. 12. Number placed in front of a chemical formula to balance an equation
  6. 13. Positively charged ion
  7. 15. reaction A process in which substances are changed into new substances
Down
  1. 1. reaction Reaction in which a substance reacts with oxygen, often producing heat and light
  2. 3. reaction Reaction in which two or more substances combine to form one product
  3. 4. ion An ion consisting of only one atom
  4. 5. replacement reaction Reaction where one element replaces another in a compound
  5. 7. Negatively charged ion
  6. 10. Substances formed at the end of a chemical reaction
  7. 11. number Number showing the charge an atom would have in a compound
  8. 14. of conservation of mass Principle stating mass cannot be created or destroyed in a chemical reaction