Расставить коэффициенты и укажите тип реакции:
...As+...O2-...As2O3
...Al+...I2-...AlI3
...Na+...H2O-NaOH+H2^
...HgO-...Hg+O2^
Cl2O7+H2O-...HClO4
...Al+...HBr-...AlBr3+...H2^
N2+O2-...NO
...NaNO3-...NaNO2+O2^
...K+...H2O+...KOH+H2^
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