Question

The formula of calcium oxide is CaO. What is the formula of the ionic compound containing calcium and permanganate ions?

Answer 1

B

Step-by-step explanation:

Answer 2

Step-by-step explanation:

Chemical formula of a permanganate ion is
`MnO^(-)_(4)` and this ion has an overall charge of -1. On the other hand, calcium is an alkaline earth metal and it has a valency of +2. Therefore, when it will chemically combines with permanganate ion then according to cross-multiplication formula it will be multiplied by 2.

Therefore, we can conclude that the formula of the ionic compound containing calcium and permanganate ions is
`Ca(MnO_(4))_(2)`.