For a substance composed of molecules, the chemical formula tells you the number of atoms in each molecule. Each atomic symbol in the chemical formula represents one atom, unless the symbol is followed by a subscript. The subscript shows how many atoms the symbol represents.

Select the model that represents a molecule of the substance with the chemical formula
NH3
.

H

C

N

1 answer

The chemical formula NH₃ represents ammonia, which consists of one nitrogen (N) atom and three hydrogen (H) atoms. Therefore, the model for the molecule would include:

  • 1 Nitrogen atom (N)
  • 3 Hydrogen atoms (H)

You would represent this visually by including one N symbol and three H symbols. If you are referring to specific options, please clarify the choices available.