This is a thermal decomposition reaction.
Dehydration of sulfuric acid (distillation done at high temperature)
H2SO4 --> SO3 + H2O
Synthesis
H2SO4 + ZnO => H2O + ZnSO4
The chemical reaction is: MgCO3 + H2SO4 ------------> MgSO4 +CO2 + H2O
decomposition
H2O(aq)+CO2(g)
The reaction is:MgO + H2SO4 = MgSO4 + H2O
H2SO4 + ZnO => H2O + ZnSO4
Combustion reaction.
This reaction is:S + 6 HNO3 = H2SO4 + 2 H2O + 6 NO2
The chemical reaction is: MgCO3 + H2SO4 ------------> MgSO4 +CO2 + H2O
decomposition
The reaction is:C + 2 H2SO4 = CO2 + 2 SO2 + 2 H2O
The reaction is:CaCO3 + H2SO4 = CaSO4 + CO2 + H2O
H2O(aq)+CO2(g)
The reaction is:MgO + H2SO4 = MgSO4 + H2O
The reaction is:MgO + H2SO4 = MgSO4 + 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.
the reaction between cupperous oxide and sulphuric acid will give you a product of copper sulphate and water which is CuSO4 and H2o. I think this is correct product obtained as far as I know and this is a important chemical reation which is frequently udes in many industrial productions.