Question

CO2+H2O=? SO2+H2O=? Na2O+H2O=? CaO+H2O=?

Answer 1

CO2+H2O=H2CO3
SO2+H2O=H2SO3
Na2O+H2O=2NaOH
CaO+H2O=Ca(OH)2

Answer 2

These chemical equations represent various reactions involving different compounds and substances. Here are the balanced equations for each of the reactions you've mentioned:

1. CO2 + H2O → H2CO3 (Carbon dioxide reacts with water to form carbonic acid.)
2. SO2 + H2O → H2SO3 (Sulfur dioxide reacts with water to form sulfurous acid.)
3. Na2O + 2H2O → 2NaOH (Sodium oxide reacts with water to form sodium hydroxide.)
4. CaO + H2O → Ca(OH)2 (Calcium oxide reacts with water to form calcium hydroxide.)

Please note that these are balanced chemical equations representing the reactions as written. If you're interested in more details about these reactions or any related concepts, feel free to ask!