Complete the following reactions and balance them:
`CH_(4(g))overset(1270k)underset(Ni)to`

Complete the following reactions and balance them: CO_((g))+H_(2(g))to

Complete the following reactions: PhCHO+CH_(3)NO_(2)overset(overset(Θ)(O)H)underset(Delta)rarr (A)

Complete the following reaction: i) R-CH_(2)-OH overset(Cu)underset(573K)rarr ii) CH_(3)-CH=CH_(2) + H_(2)O overset(H^(+))rarr

Complete the following reactions. CH_2 = CH_2 + H_2 overset(Ni)underset(573K) rarr ……………..

Complete the following reactions (i) C+H_(2)Ooverset(1270K)(to) (ii) PbS+4H_(2)O_(2)to (iii) NaH+H_(2)Oto