unit 6B vocabulary

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Across
  1. 4. substance combines with another substance
  2. 5. changes the form of an object
  3. 7. symbols, numbers, parenthesis, dashes, and brackets
  4. 8. mass is conserved over time
  5. 9. first column, very reactant
  6. 10. change during a reaction
  7. 11. odorless & colorless
Down
  1. 1. outer shell of an atom
  2. 2. the result of a chemical reaction
  3. 3. attraction between atoms
  4. 6. a chemical reaction in the form of symbols and formulas