Hydronium and Hydroxide Ions Quiz
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Questions and Answers

Which of the following is true about hydronium and hydroxide ions?

  • Hydronium ions have a negative charge, while hydroxide ions have a positive charge.
  • Both hydronium and hydroxide ions have a negative charge.
  • Hydronium ions have a positive charge, while hydroxide ions have a negative charge. (correct)
  • Both hydronium and hydroxide ions have a positive charge.
  • Which of the following correctly describes the pH scale?

  • The pH scale measures the concentration of hydronium ions in a solution. (correct)
  • The pH scale measures the concentration of hydrogen ions in a solution.
  • The pH scale measures the concentration of water molecules in a solution.
  • The pH scale measures the concentration of hydroxide ions in a solution.
  • What happens when hydronium and hydroxide ions combine in a solution?

  • They react to form water. (correct)
  • They form a highly acidic solution.
  • They repel each other and remain separate.
  • They form a neutral solution.
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