Расставьте коэффициенты в уравнениях методом электронного баланса: 1) Fe + Cl2 → FeCl3 2) Zn + HCl → ZnCl2 3) HBr + O2 → H2O + Br2 4) NH3 + O2 → NO + H2O 5) Zn + HNO3 - Zn(NO3)2 + N2 + H2O​
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