1 Расставить коэффициенты.
FeCl3 + AgNO3 = Fe(NO3)3 + AgCl
NH3 = N2 + H2
P + O2 = P2 O5
Mg + SiO2 = MgO + Si
MnO2 + HCl = MnCl2 + Cl2 + H2O
2 Расставить коэффициенты.
H3PO4 = H4P2O7 + H2O
Fe2O3 + H2 = Fe + H2O
NaOH + CO2 = Na2CO3 + H2O
NO + O2 = NO2
CH4 + O2 = CO2 + H2O
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