Odpowiedź :
Na2O + H2O---->2NaOH
CO2 + H2O---->H2CO3
P4O10 + 6H2O---->4H3PO4
CaO + H2O---->Ca(OH)2
SO2 + H2O---->H2SO3
[tex][tex]Na_{2}O + H_{2}O \rightarrow 2 NaOH \\ CO_{2} + H_{2}O \rightarrow H_{2}CO_{3} \\ P_{4}O_{10} + 6H_{2}O \rightarrow 4H_{3}PO_{4} \\ CaO + H_{2}O \rightarrow CA(OH)_{2} \\ SO_{2} + H_{2}O \rightarrow H_{2}SO_{3}[/tex][/tex]