A.H2O2H2的精选

问题详情：书写正确的化学方程式是( )A．H2O2H2↑+O2↑                                  B．H2O2H2O+O2↑C．2H2O22H2O+O2                             ...

问题详情：书写正确的化学方程式是（）A．H2O2H2↑+O2↑                    B．H2O2H2O+O2↑C．2H2O22H2O+O2                     D．2H2O22H2O+O2↑【回答】【分析】根据化学方程式判...