даны уравнения реакции, расставьте коэффициенты и подпишите тип химической реакции.
a) ......Fe(ON)3=Fe2O3+H2O
b) CuCl2+...... KOH=Cu(OH)2+........KCl
c) Mg+......HCl= MgCl2+H2
d) ......P+5 O2==> ......P2O5​
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