Расставьте коэффициенты:
а) Cu+ AgNO3 - Cu(NO3)2+ Ag
б)MgO+HNO3 - Mg (NO3)2 + H2O
в)AI2O3+HCI - AICI3+ H2O
г)P+O2 - P2O5
д) KCIO3 - O2+ KCI.
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