Practice Quiz

MCAS Chemistry Exam Practice

Category - Chemistry

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When a sample of potassium chloride dissolves in water, it separates into potassium ions and chloride ions. Which of the following best accounts for the positive charge of the potassium ions?
  1. They have extra mass.
  2. They have a large volume.
  3. They have fewer electrons than protons.
  4. They have a high density of neutrons and protons.
Explanation
Answer: C - They have fewer electrons than protons.
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