Complete the given equations (i) (ii) Cu +8 HNO _ 3 3 Cu ( NO _ 3 )_ 2 + +4 H _ 2 O (iii)…

Complete the given equations
(i)
(ii) \(\mathrm{Cu}+8 \mathrm{HNO}_{3} \rightarrow 3 \mathrm{Cu}\left(\mathrm{NO}_{3}\right)_{2}+\ldots \ldots \ldots+4 \mathrm{H}_{2} \mathrm{O}\)
(iii) \(\underset{\text { (excess) }}{8 \mathrm{NH}_{3}}+3 \mathrm{Cl}_{2} \rightarrow \ldots \ldots+\mathrm{N}_{2}\)
(iv) \(\mathrm{I}_{2}+10 \mathrm{HNO}_{3} \rightarrow \ldots . \ldots+10 \mathrm{NO}_{2}+4 \mathrm{H}_{2} \mathrm{O}\)