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NataliaVacarciuc
a fost răspuns

Completeaza ecuatiile reactiilor chimice si egaleaza-le: CaO + ? -> Ca(NO3)2 +? Fe2O3 + ? -> Fe2(SO4)3 + ? MgO + ? MgCl2 + ? SO2 + KOH -> ?+? CO2 + Ba(OH)2 ->?+? SiO2 + NaOH -> ?+? SO3 + NaOH -> ?+? CaO+SiO2 -> ? Na2O+SiO2 -> ? Cao+CO2 -> ?

Răspuns :

Borea123391
CaO+2HNO3=Ca(NO3)2+H2O
Fe2O3+3H2SO4=Fe2(SO4)3+3H2O
MgO+2HCl=MgCl2+H2O
SO2+2KOH=K2SO4+H2
CO2+Ba(OH)2=BaCO3+H2O
SiO2+2NaOH=....
SO3+2NaOH=Na2SO4+H2O
CaO+SiO2=...
CaO+CO2=CaCO3

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