Which out of the following compounds has the hi&hest percentage of nitrogen -
`CaCN_(2)` or NH4NO3?

Explanation

To determine which compound has the highest percentage of nitrogen between \( \text{CaCN}_2 \) (calcium cyanide) and \( \text{NH}_4\text{NO}_3 \) (ammonium nitrate), we will calculate the percentage of nitrogen in each compound using the formula:

\[ \text{Percentage of Nitrogen} = \left( \frac{\text{Molecular mass of Nitrogen}}{\text{Molecular mass of compound}} \right) \times 100 \]

### Step 1: Calculate the molecular mass of \( \text{CaCN}_2 \)

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