Chemistry

Problem

Consider the following processes: I. Boiling liquid

\mathrm{Br_2}

to form

\mathrm{Br_2(g)}

II. Combustion of

\mathrm{CH_4(g)}

\mathrm{O_2(g)}

III. Thermal decomposition of

\mathrm{NH_4Cl(s)}

into

\mathrm{NH_3(g)}

and

\mathrm{HCl(g)}

IV. Condensation of

\mathrm{H_2O(g)}

to form liquid water How many of the processes listed involve breaking chemical bonds? a) 1 b) 3 c) 2 d) 0