# Question ab1e9

Jul 28, 2016

Many chemical compounds are present in egg shell. As such it can not be represented as a simple chemical formula.

#### Explanation:

The ingredient chemicals in eggshells are:

1. Calcium Carbonate. The shell is about 95% ${\text{CaCO}}_{3}$.
2. Calcium Phosphate. "Ca"_3("PO"_4)_2
3. Magnesium Carbonate. ${\text{MgCO}}_{3}$
The constituents 2 and 3 make the remaining 5%.#
4. Some soluble and insoluble proteins are also present in traces.

Crushing of an egg shell will not change its chemical composition.