Water Quality Vocabulary

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Across
  1. 2. the chemical or physical conditions of water
  2. 4. the measurement of hydrogen ions in a substance
  3. 6. a charged atom due to a change in normal electron number
  4. 9. amount of calcium and magnesium ions dissolved in the water
  5. 10. NH3, excreted through fish gills and urine, released as organic matter decomposes
  6. 12. the conversion of ammonia nitrogen into a final product of nitrate nitrogen
  7. 13. NO3-, the second compound produced during nitrification, relatively nontoxic to fish
  8. 15. NO2-, the first compound produced in the nitrification cycle
Down
  1. 1. when a substance contains OH- (hydroxl ions)
  2. 3. formed when chlorine and ammonia bind in water
  3. 5. amount of oxygen contained in the water
  4. 7. the amount of dissolve salt in the water
  5. 8. when a substance contains H+ (hydron ion)
  6. 11. living bacteria responsible for the nitrification process
  7. 14. binds to hydrogen ions in the water to keep pH stable