Chapter 3, Problem 88AP

Interpretation Introduction

Interpretation:

The energy change needs to be determined for the given set of reactions. The reason for the formation of ${\text{Na}}^{+}{\text{I}}^{-}{\text{ and K}}^{+}{\text{Cl}}^{-}$ instead of ${\text{Na}}^{-}{\text{I}}^{+}{\text{ and K}}^{-}{\text{Cl}}^{+}$ needs to be explained.

Concept Introduction:

The chemical formula is representation of number of different types of elements present in the compound.