Question

1. the structure of ammonia looks like this: ammonia is a(n)_. 13. identify the diagram: 14. identify the diagram: 15. identify the diagram:

Explanation:

1. Ammonia ($NH_3$) is a compound as it is made up of nitrogen and hydrogen atoms chemically bonded.
2. The diagram shows a mixture of different substances, likely a mixture of elements or simple molecules.
3. This diagram represents a solid - a closely packed arrangement of particles.
4. This represents a compound as the particles are made up of different types of atoms bonded together.

Answer:

1. Compound
2. Mixture
3. Solid
4. Compound