BlackCat1338 А),,,+2,,,=,,,,,,,,,,,,,
б)2,,,,,,=,,,,+3,,,,
в)_____________
г)2,,,,+,,,,=,,,,

а)2,,,,=2,,,,+,,,,
б)4,,,,+3,,,,=,,,,
в)2,,,+3,,,,=,,,,,+3,,,,
г)2,,,+,,,=,,,+2,,,

mahamde 1) CuSO4 +2NaOH----Na2SO4+Cu(OH)2
2) 2AI(OH)3----AI2O3+3H2O
3) Fe+2CuCI-----2Cu+FeCI2
4) 2Na+S--NA2S

1) 2KNO3-----2KNO2+O2
2) 4AI+3C------AI4C3
3) AI+3H2SO4-----AI(SO4)3+3H2
4) Cu(OH)2+2HNO3----Cu(NO3)+2H2O