As k2o dissolves in water, the oxide ion reacts with water molecules to form hydroxide ions. write the molecular and net ionic equations for this reaction. based on the definitions of acid and base, what ion is the base in this reaction

Solution:

The molecular equation is:

Now, the oxide ion reacts with water to produce hydroxide ions,

The ionic equation is:

The ions are present on both the sides, so the net ionic equation becomes,

Now, to determine acid and base, we will look at the definitions

Acid: It is defined as proton donor that is it donates ions.

Base: It is defined as proton acceptor that is it accepts ions.

In the ionic equation, water is donating ions to therefore it acts as an acid and oxide ion acts as a base.