Chapter 2, Problem 79RQ

2.79 How many atoms of each kind are represented in the following formulas? For each, name the elements present. $\left(\text{a}\right)\text{Ni}{\left({\text{ClO}}_{\text{4}}\right)}_{\text{2}}\text{, }\left(\text{b}\right){\text{ COCl}}_{\text{2}}{}^{\text{,}}\left(\text{c}\right){\text{K}}_{\text{2}}{\text{Cr}}_{\text{2}}{\text{O}}_{\text{7}}{}^{\text{,}}\left(\text{d}\right){\text{ CH}}_{\text{3}}{\text{CO}}_{\text{2}}\text{H,}\left(\text{e}\right)\left({\text{NH}}_{\text{4}}\right){\text{HPO}}_{\text{4}}$