Write the balanced chemical equation for the following:
In the preparation of phosphate fertilisers, calcium phosphate in phosphate rock is converted into phosphoric acid and calcium sulphate.

Explanation

To write the balanced chemical equation for the conversion of calcium phosphate into phosphoric acid and calcium sulfate, we will follow these steps:

### Step 1: Identify the Reactants and Products
- **Reactant**: Calcium phosphate (Ca₃(PO₄)₂)
- **Products**: Phosphoric acid (H₃PO₄) and calcium sulfate (CaSO₄)

### Step 2: Write the Unbalanced Chemical Equation
The unbalanced equation can be written as:
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