When a sample of solid Ca(OH)2 dissolves in water, the only negative ions in the solution are
- Mayya Alocci
- Nov 11
- 1 min read
Regents Chemistry Exam August 2025 Question 27
27 When a sample of solid Ca(OH)2 dissolves in water, the only negative ions in the solution are
(1) hydronium ions (3) oxide ions (2) hydroxide ions (4) calcium ions
Solution:
Ca(OH)2 produces OH- ions when dissolved in water. OH- ions are called hydroxide ions. Choice 2 is the correct answer choice.
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