# How many atoms of each element is in #CaCO_3#?

##### 1 Answer

Dec 2, 2016

#### Answer:

Element: 1 atom

Compound: 2+ atoms

Ca - C - O3

Therefore: 5 atoms!

Molar mass is a different story:

#### Explanation:

Molar mass:

Add the atomic mass of whole equation

Ca: 40

C: 12

O: 16 since it is O3 times 16 by 3

100 is the molar mass of the formula