1.

For which change triangleHnetriangleU:

Answer»

`H_2+I_2⇌2HI`
`HCl+NaOHrarrNaCl+H_2O`
`C(s)+O_2(G)⇌CO_2(g)`
`N_2+3H_2rarr2NH_3`

ANSWER :D


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