Chapter 2, Problem 2.111AP

(a)

Interpretation Introduction

To determine: The names of the two ionic compounds ${\text{Cr}}_{\text{2}}{\text{O}}_{\text{3}}$ and $\text{NiO}$.

Interpretation: The names of the two ionic compounds ${\text{Cr}}_{\text{2}}{\text{O}}_{\text{3}}$ and $\text{NiO}$ is to be stated.

Concept introduction: The naming of the compound is done on the basis of atoms attached to it and the charge present on each atom.

(b)

Interpretation Introduction

To determine: The charges of the cations in ${\text{Cr}}_{\text{2}}{\text{O}}_{\text{3}}$ and $\text{NiO}$.

Interpretation: The charges of the cations in ${\text{Cr}}_{\text{2}}{\text{O}}_{\text{3}}$ and $\text{NiO}$ is to be calculated.

Concept introduction: The naming of the compound is done on the basis of atoms attached to it and the charge present on each atom.