Chapter 21, Problem 55RQ

Interpretation Introduction

Interpretation:

The formula along with correct charge for a complex that contain ${\text{Cr}}^{3+}$, two ${\text{NH}}_{\text{3}}$ ligands, and four ${\text{NO}}_2{}^{-}$ ligands is to be written.

Concept Information:

Complex ions are the ions which are formed by the metal atom at the center and the other non-metal molecules or ions that surrounds it.

Lewis acid-base reaction is the reaction between the lewis acid (loss of pair of electrons) and lewis base (gain of pair of electrons).

Ligands are the molecules or ions that bond with a coordinate covalent bond to form a metal ion.