# How do you classify these chemical bonds as ionic, covalent, or both?

## $C a C {l}_{2}$ $C {O}_{2}$ ${H}_{2} O$ $B a S {O}_{4}$ ${K}_{2} O$ $N a F$ $N {a}_{2} C {O}_{3}$ $C {H}_{4}$ $S {O}_{3}$ $L i B r$ $M g O$ $N {H}_{4} C l$ $H C l$

Jul 14, 2018

Have you not got anymore for us to ponder...?

#### Explanation:

Ionic bonding involves the interaction of discrete ions...they are marked by non-molecularity, and the formation of ionic substances that have high melting and boiling points. You should look up the melting points of each substance listed in order to appreciate this.

$C a C {l}_{2}$ $\text{ionic;}$

$C {O}_{2}$ $\text{molecular;}$

${H}_{2} O$ $\text{molecular;}$

$B a S {O}_{4} , {K}_{2} O , N a F , N {a}_{2} C {O}_{3}$ $\text{ionic;}$

$C {H}_{4} , S {O}_{3}$ $\text{molecular}$

$L i B r , M g O , N {H}_{4} C l$ $\text{ionic}$

$H C l$ $\text{molecular}$.

How do you know which is which? That proposition is a bit harder to address ...but I assure you that the melting points, and boiling points of the ionic materials will be quite elevated with respect to the non-ionic or molecular materials, ....the weakest ionic bond will occur for ammonium chloride, and its decomposition temperature will reflect this. In addition, there are many materials that ARE NON-IONIC, and NON-MOLECULAR, for instance diamond, or graphite, or silicon dioxide. Are these materials likely to have high or low melting or boiling points?