# How do you balance CaCO_3 + H_3PO_4 -> Ca_3(PO_4)_2 + CO_2 + H_2O?

Solved below pal...

#### Explanation:

There are lots of methods to balance a chemical equation such as a simple inspection , ion-electron, reduction-oxidation(Redox), algebraically** and so on.

For this reaction , we simply use the inspection method:
I'd advice you to start off with metallic elements or ions.

$3 C a C {O}_{3} + 2 {H}_{3} P {O}_{4} = = C {a}_{3} {\left(P {O}_{4}\right)}_{2} + 3 C {O}_{2} + 3 {H}_{2} O$