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Across
  1. 4. - a laboratory technique used to determine the concentration of a solution by reacting it with a known amount of another solution.
  2. 6. - a chemical equation that shows either the oxidation or reduction process in a redox reaction.
  3. 7. - a substance that accepts hydrogen ions (H+) in solution.
Down
  1. 1. - a chemical reaction in which an atom or ion gains electrons.
  2. 2. - a process in which an electric current is passed through a substance to cause a chemical reaction.
  3. 3. - a chemical reaction in which an atom or ion loses electrons.
  4. 5. - a measure of the acidity or basicity of a solution, defined as the negative logarithm of the hydrogen ion concentration.
  5. 7. - a solution that resists changes in pH when small amounts of acid or base are added.