52 Балла!!!
Помогите пожалуйста расставить коэффициенты
1)HgO->Hg+O2
2)FeCl2+Cl2->FeCl3
3)Ba+HCl->BaCl2+H2
4)Al(OH)3+H2SO4->Al2(SO4)3+H2O
5)KMnO4->K2MnO4+MnO2+O2
6)Al2O3+HCl->AlCl3+H2O
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