* NH3: This is the chemical formula for ammonia. It represents one molecule of ammonia.
* 2NH3: This means we have two molecules of ammonia.
Breakdown of the atoms:
* N (Nitrogen): Each ammonia molecule (NH3) contains one nitrogen atom. Since we have two molecules, there are 2 nitrogen atoms.
* H (Hydrogen): Each ammonia molecule contains three hydrogen atoms. With two molecules, there are a total of 6 hydrogen atoms (2 molecules x 3 atoms/molecule = 6 atoms).
Therefore, 2NH3 contains a total of 8 atoms (2 nitrogen + 6 hydrogen).
