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H2SO4 + ZnO => H2O + ZnSO4
This is a thermal decomposition reaction.
doubllle
Pb + PbO2 + H2SO4 --> PbSO4 + H2O
When another reaction is meant:H2SO4 --> SO3 + H2O then this makes more sense than the non-descriptive symbols like ½, æ, ¾ in the above " H½SO æ SO¾ plus H½O "Though this reaction H2SO4 --> SO3 + H2O is possible, it is a highly unlikely (endothermic) reaction called de-hydratation of sulfuric acid.The other way around SO3 + H2O --> H2SO4 is far more favoured and very, dangerously exothermic. It might set paper in fire and SO3 'burns' your skin until carbonized.
H2SO4 + ZnO => H2O + ZnSO4
This is a thermal decomposition reaction.
doubllle
Pb + PbO2 + H2SO4 --> PbSO4 + H2O
This reaction is:Na2O + H2SO4 = Na2SO4 + H2O
When another reaction is meant:H2SO4 --> SO3 + H2O then this makes more sense than the non-descriptive symbols like ½, æ, ¾ in the above " H½SO æ SO¾ plus H½O "Though this reaction H2SO4 --> SO3 + H2O is possible, it is a highly unlikely (endothermic) reaction called de-hydratation of sulfuric acid.The other way around SO3 + H2O --> H2SO4 is far more favoured and very, dangerously exothermic. It might set paper in fire and SO3 'burns' your skin until carbonized.
Fe2O3 + H2SO4
A combustion reaction
In this case the H2SO4 (sulfuric acid) is acting as an acid. The acid loses a hydrogen ion, and the base gains one.
Combustion reaction.
neutralization
This is a neutralization reaction:2 NH4OH + H2SO4 = (NH4)2SO4 + 2 H2O