Select the option that completes the following chemical reaction by giving the formula of the products X and Y. 2Na + 2CH3CH2OH → X + Y
X = 2CH3CH2O−Na+; Y = H2
Sodium reacts with ethanol (CH3CH2OH) much like it reacts with water: it replaces the hydrogen of the –OH group.
The products are sodium ethoxide and hydrogen gas: 2Na + 2CH3CH2OH → 2CH3CH2O−Na+ + H2.
So X = 2CH3CH2O−Na+ (two moles of sodium ethoxide, balancing the two moles of ethanol) and Y = H2. Oxygen and water are not formed, and CH3O−Na+ is sodium methoxide, which comes from methanol.
Hence, X = 2CH3CH2O−Na+; Y = H2.
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