a) sulfuric acid H2SO4 + zinc oxide ZnO ---> zinc sulfuric ZnSO4 + Nước
b) sodium hydroxide NAOH + sulfur trioxide SO3 --> sodium sulfate Na2SO4 + Nước
c) Nước + sulfur dioxide SO2 ---> sulfurous acid H2SO3
d) Nước + Calcium oxide CaO ---> Calcium hydroxide Ca(OH)2
e) Calcium oxide CaO + carbon dioxide CO2 ---> Calcium carbonate CaCO3
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