Write the structures of the following hydrates which contains ionic, covalent, coordinates and `H-bonds`.
a. `CuSO_(4).5H_(2)O.` , b.`ZnSO_(4).5H_(2)O`
c. `FeSO_(4).7H_(2)O.`

Explanation

To write the structures of the hydrates CuSO₄·5H₂O, ZnSO₄·5H₂O, and FeSO₄·7H₂O, we will analyze each compound step by step, identifying the types of bonds present: ionic, covalent, coordinate, and hydrogen bonds.

### Step 1: Structure of CuSO₄·5H₂O

1. **Identify the central metal ion and its oxidation state**:
- Copper (Cu) is in the +2 oxidation state.

2. **Determine the coordination number**:
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