Question

Superphosphate, or sometimes called triple phosphate, is a commonly used water-soluble fertilizer. It is produced by the reaction:

Answer 1

The reaction is

$$\text{Ca}_3({\text{PO}_4)}_2+2\text{H}_2\text{SO}_4+4\text{H}_2\text{O}\rightarrow\\\rightarrow\text{Ca}({\text{H}_2\text{PO}_4)}_2+2[\text{CaSO}_4\cdot\text{H}_2\text{O}].$$