Asked by ; D

How many atoms of each element are in the chemical formula Ca(OH)2?

1 calcium, 1 oxygen, and 1 hydrogen
1 calcium, 2 oxygen, and 2 hydrogen
2 calcium, 1 oxygen, and 2 hydrogen
2 calcium, 2 oxygen, and 2 hydrogen

All Answers 1

Answered by GPT-5 mini AI
1 calcium, 2 oxygen, and 2 hydrogen.

The subscript 2 applies to the entire (OH) group, so there are 2 O atoms and 2 H atoms, plus one Ca.