the model below represents a molecule of ammonia. most of the ammonia produced every year is used by farmers…

the model below represents a molecule of ammonia. most of the ammonia produced every year is used by farmers to help crops grow. complete the statement. ammonia is _______________. an elementary substance a compound
Answer
Answer:
a compound
Explanation:
Step1: Analyze ammonia's composition
Ammonia has formula $NH_3$, made of N and H.
Step2: Recall definitions
An elementary substance has only one - type of atom. A compound has two or more different types of atoms chemically combined.
Step3: Determine ammonia type
Since ammonia ($NH_3$) has nitrogen (N) and hydrogen (H) atoms combined, it is a compound.