this is what i foudn-By its definition as a homogeneous solid, a mineral is composed of a single solid substance of uniform composition that cannot be physically separated into simpler chemical compounds. ... Most rocks are composed of several different minerals; e.g., granite consists of feldspar, quartz, mica, and amphibole.
hope this is helpful.
Then it would become: S2-
Its charge will be -2.
The M stands for molar, so it would be 5.0 molar. is that what you need?
