Chemical Reaction Crossword

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Across
  1. 3. Gives off energy (gets hot)
  2. 4. Good at dissolving metals
  3. 6. Made famous by bases
  4. 7. Slippery and bitter
Down
  1. 1. Made famous by acids
  2. 2. Absorbs energy (gets cold)
  3. 5. Combines with oxygen gas to form water