Question

Ca(OH)2 is added to a large beaker. How is the solution different from the original water?

A.the solution turns blue litmus to red
B.The solution turns phenolphthalein pink
C.The solution has more hydrogen ions
D.The solution has fewer hydroxide ions

Answer 1

b. The solution turns phenolphthalein pink.

Step-by-step explanation:

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Answer 2

Definitely, the correct answer is option B. When Ca(OH)2 is added into a beaker, the solution will turn into pink when the indicator phenolphthalein is added. This is due to the hydroxide ions from the calcium hydroxide dissolved in water. The compound dissociates into calcium ions and hydroxide ions.