Question

how many nitrogen atoms are there in 5 molecules of nh₃?

Explanation:

Step1: Analyze one \( NH_3 \) molecule

In one molecule of \( NH_3 \) (ammonia), the subscript of \( N \) (nitrogen) is 1, which means there is 1 nitrogen atom per \( NH_3 \) molecule.

Step2: Calculate for 5 molecules

To find the number of nitrogen atoms in 5 molecules of \( NH_3 \), we multiply the number of nitrogen atoms per molecule (1) by the number of molecules (5). So the calculation is \( 1\times5 = 5 \).

Answer:

5