Chemical Reactions

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Across
  1. 3. explanation of things or events
  2. 5. anything that takes up space and has mass
  3. 8. substance that produces H ions in a water solution
  4. 10. The new substance formed in a chemical reaction
  5. 13. substance with atoms that are all alike
  6. 14. the amount of matter in an object
Down
  1. 1. a possible explanation for a problem
  2. 2. substance that produces OH ions in a water solution
  3. 4. The substance that reacts in a chemical reaction
  4. 6. substance with atoms of 2 or more elements
  5. 7. reaction that gives off heat
  6. 9. a charged particle
  7. 11. substance that speeds up a chemical reaction
  8. 12. reaction that requires thermal energy input