PH Scale Crossword 2

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Across
  1. 2. Any type of matter
  2. 3. Process of substances changing
  3. 7. Contains acid for digestion
  4. 9. Can cause acid rain
  5. 10. Source of acid
Down
  1. 1. Neutralizes stomach acid
  2. 4. Strong household base
  3. 5. Can become acidic
  4. 6. Study of matter
  5. 8. Strong cleaning base