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What is the insoluble base and soluble acid in the reaction between magnesium hydroxide and hydrochloric acid?

1 Answer

May 20, 2017

The insoluble base is magnesium hydroxide, ${Mg(OH)}_{2} (s)$ $"Mg(OH)"_2("s")$ and the soluble acid is hydrochloric acid, $HCl(aq)$ $"HCl(aq)"$ .

Explanation:

Magnesium hydroxide plus hydrochloric acid produce magnesium chloride and water.

${Mg(OH)}_{2} (s) + 2HCl(aq)$ $"Mg(OH)"_2("s") + "2HCl(aq)"$ $\to$ $rarr$ ${MgCl}_{2} (aq) + {2H}_{2} O(l)$ $"MgCl"_2("aq") + "2H"_2"O(l)"$

You could evaporate the water to obtain solid ${MgCl}_{2}$ $"MgCl"_2"$ .

The insoluble base is magnesium hydroxide and the soluble acid is hydrochloric acid.

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