Chemical Reaction Vocab. Quiz

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Across
  1. 2. happens when one chemical substance is transformed into one or more different substances as a result of a change in the arrangement of atoms, such as when iron becomes rust
  2. 4. a water bottle with a lid on it is an example of a _________ _________ because nothing can escape
  3. 7. What kind of energy is produced by a fire?
  4. 8. combining water, iron filings, and calcium carbonate to produce heat is an example of an _______ ______________
  5. 9. a solid, liquid, and a gas are examples of the _____ of matter
Down
  1. 1. a substance separated from a solution by chemical or physical change usually as an insoluble solid
  2. 3. saved; nothing lost or gained
  3. 4. Na + Cl -> NaCl is an example of a _______ ______________
  4. 5. melting ice cubes is an example of an ____________ _______________
  5. 6. boiling water in an uncovered pot is an example of an