Chapter 7.3, Problem 29PP

Interpretation Introduction

Interpretation:

The name of the compound ${\text{CaCl}}_2$.

Concept introduction:

The chemical compounds are named based on the non metal and metal groups. The compound is to have single name though some compounds have alternative names as well. Therefore, common name identifies the chemical compound and its formula. Cation gets name of the elements while anions are named taking its first part adding ‘ide’ at the end.

Answer to Problem 29PP

The name of the compound ${\text{CaCl}}_2$ is Calcium Chloride.

Explanation of Solution

The binary compounds have two elements where one of the elements can be group 1 or Group 2. The naming of this compound follows certain rules wherein the ending word for binary compound is ‘ide’. Also, cation is named first while anion is named second. Cation gets name of the elements while anions are named taking its first part adding ‘ide’ at the end.

The compound ${\text{CaCl}}_2$ is further studied

1. ‘Ca’ is chemical symbol for Calcium
2. ‘ ${\text{Cl}}_2$’ is the chemical symbol for Chloride. It denotes element Chlorine. But as per naming convention, it should end with ‘ide’. Hence, it is named as Chloride.
3. Now combining both the elements names it is identified as ‘Calcium Chloride’.

Conclusion

The name of the compound ${\text{CaCl}}_2$ is Calcium Chloride.