Question

How many atoms of each element are in the chemical formula Ca(OH)2?
 a)1 calcium, 1 oxygen, and 1 hydrogen
b)1 calcium, 2 oxygen, and 2 hydrogen
c)2 calcium, 1 oxygen, and 2 hydrogen
d)2 calcium, 2 oxygen, and 2 hydrogen

Answer 1

I think it's b

Ca(OH)2 means that Ca + (OH)2 which means that Ca + O2 + H2 right?

Answer 2

Answer: Option (b) is correct that is $Ca(OH)_{2}$ contains 1 calcium, 2 oxygen, and 2 hydrogen.

Explanation:

The chemical formula $Ca(OH)_{2}$ contains elements of calcium, oxygen, and hydrogen.

The number of atoms of each element in this chemical formula are as follows.

• Number of calcium atom is 1.

• Number of oxygen atoms is 2.

• Number of hydrogen atoms is 2.