Question

How many chromium ions are in the compound chromium(ii) nitrate?

Answer 1

1

Step-by-step explanation:

In chromium(II) nitrate, there is one chromium ion in the formula. Chromium has a 2+ charge and nitrate has a 1- charge, so one chromium ion and two nitrate ions are in the formula to create a balance between the charges of the cation and the anion.

Answer 2

The chemical formula of chromium (II) nitrate is as shown below.

Cr₂NO₃

The number in the subscript of the chemical formula of the given element signifies the number of atom or ions of the given element. In this regard, based on the chemical formula written for chromium (II) nitrate, the number of chromium ions would have to be 2.

Answer: 2