1. K-k2O-KOH-KCl-AgCl. 2.Cu-CuO-CuSO4-Cu(OH)2-CuO. 3.S-SO2-SO3-H2SO4-MgSO4.; SO2-Na2SO3. Помогите, прошу

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Ответы и объяснения

2014-01-15T15:15:37+00:00
1)4K+2O2=2K2O;                                     3)S+O2=SO2;
K2O+H2O=2KOH;                                       2SO2+O2=2SO3;
KOH+HCl=KCl+H2O;                                   SO3+H2O=H2SO4;
KCl+AgNO3=KNO3+AgCl;                            H2SO4+Mg=MgSO4+H2;

2)2Cu+O2=2CuO;                                      4)SO2+Na2O=Na2SO3
CuO+H2SO4=CuSO4+H2O;
CuSO4+2H2O=Cu(OH)2+H2SO4;
Cu(OH)2=CuO+H2O.