Cu2+ + H2PO2- +3OH- =Cu + HPO3(2-) +2H2O4Cu2+ +NaBH4 + 8OH- =4Cu + NaBO2 + 6H2O分开写应该是：NaBH4+2H2O=4H2+NaBO2 H2+Cu2+ +2OH- =Cu+ 2H2O 查看原帖>>