Balance the following chemical equations.

Options

A. `HNO_(3) + Ca(OH)_(2) rarr Ca(NO_(3))_(2) + H_(2)O `
B. `NaOH + H_(2)SO_(4) rarr Na_(2)SO_(4) + H_(2)O`
C. `NaCl + AgNO_(3) rarrAgCl +NaNO_(3)`
D. `BaCl_(2)+H_(2)SO_(4) rarr BaSO_(4) + HCl`

Explanation

To balance the given chemical equations, we will follow a systematic approach. Here’s a step-by-step solution for each equation:

### Equation 1:
**HNO3 + Ca(OH)2 → Ca(NO3)2 + H2O**

1. **Count the number of atoms of each element on both sides:**
- Reactants:
- H: 1 (from HNO3) + 2 (from Ca(OH)2) = 3
...