They are different substances. They have the same weight. They have the same densities. They are different mixtures.
I am hesitating between 4 options to answer the following question, which option should I choose?
Question: If it is determined that the particles in one solid are arranged in a repeating pattern and the particles in another solid are arranged randomly, what must be true about the solids?
Possibilities:
- They are different substances.
- They have the same weight.
- They have the same densities.
- They are different mixtures.

They are different substances.