Question

What is the chemical formula for the combination of lead (II) and sulfer?

Answer 1

`Pb^(2+) + S^(2-) rarr PbS(s)darr`

Explanation:

Lead sulfide occurs in the mineral, `"galena"`. It is as soluble as a brick.

The given reaction illustrates conservation of mass and conservation of charge, as indeed it must if it reflects chemical reality. Why?