Question

How many total atoms are in one molecule of nickel hydroxide, Ni(OH)2?


1
3
4
5

Answer 1

Ni(OH)2 looks something like this:

Answer 2

the (OH)2 part means you have two groups of O and H atoms along with your Ni. In total, the number of atoms is 1 Ni + (1 O + 1 H) * 2 = 5