Question

Which of the following reactions represents the basic oxide Li2O reacting with water?

a) Li2O(s) + H2O(l) --> 2LiOH(aq)
b) CO2(s) + H2O(l) --> H2CO3(aq)
c) Na2O(s) + H2O(l) --> 2NaOH(aq)
d) MgO(s) + H2O(l) --> Mg(OH)2(aq)

Answer 1

The Li2O(s) + H2O(l) → 2LiOH(aq) reaction depicts the basic oxide lithium oxide reacting with water to form lithium hydroxide, a soluble metal hydroxide.

Step-by-step explanation:

The reaction that represents the basic oxide Li2O reacting with water to form a basic solution is:

Li

2

O(s) + H

2

O(l) → 2LiOH(aq)

This reaction shows lithium oxide (Li2O), which is a basic oxide from the alkali metal group, reacting with water (H2O) to produce lithium hydroxide (LiOH), a soluble metal hydroxide. This is consistent with the general behavior of alkali metals reacting with water to form a metal hydroxide and hydrogen gas.