A.H2O B.C2O42- C.NH2NH2 D.NH4+
已知下列數(shù)據(jù): Cu2++2e =Cu φΘ=+0.342V Cu++e=Cu φ=+0.522V 則 2Cu+→ Cu + Cu2+的標(biāo)準(zhǔn)電動(dòng)勢(shì)εΘ為()
A.-0.162 V B.+0.162 V C.+0.360 V D.-0.360 V
A.N2(g)+ 3H2(g)=2NH3(g) B.Ag(s)+ 1/2Cl2(g)=AgCl(s) C.1/2H2(g)+1/2Br2(g)=HBr(g) D.HCl(g)+ NH2(g)= NH4Cl(s)