Уравняйте:

 MgO+H3PO4=

ZnO+H2SO4=

SO2+NaOH=NaSO3+H2O

C2H6+O2=CO2+H2O

Mn+O2=Mn(степень окисления +5)O(степень окисления -2)

Al(OH)3=Al2O3+H2O

Na+H3PO4=

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