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twikirizh
@twikirizh
July 2022
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Расставьте коэффициенты
в номере 2.5 (б) , 2.6 (а) ,
2.8 ( а,б)
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Дильда0101
2.5(б)
Fe2O3+3H2=3H2O+2Fe
3PbO+2Al=Al2O3+3Pb
Cr2O3+3Mg=3MgO+2Cr
Al+2H2O=Al(OH)2+H2
2.6(a)
KCIO2=KCI+O2
2NaNO3=2NaNO2+O2
2CuOH=Cu2O+H2O
2Al(OH)3=Al2O3+3H2O
2.8(б)
2H2O+2K=H2+2KOH
CaO+H2O=Ca(OH)2
3Fe+4H2O=Fe3O4+4H2
2H2O2=2H2O+O2
2Cu(NO3)2=2CuO+4NO2+O2
1 votes
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Answers & Comments
Fe2O3+3H2=3H2O+2Fe
3PbO+2Al=Al2O3+3Pb
Cr2O3+3Mg=3MgO+2Cr
Al+2H2O=Al(OH)2+H2
2.6(a)
KCIO2=KCI+O2
2NaNO3=2NaNO2+O2
2CuOH=Cu2O+H2O
2Al(OH)3=Al2O3+3H2O
2.8(б)
2H2O+2K=H2+2KOH
CaO+H2O=Ca(OH)2
3Fe+4H2O=Fe3O4+4H2
2H2O2=2H2O+O2
2Cu(NO3)2=2CuO+4NO2+O2