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Chemistry & Chemical Reactivity

10th Edition
John C. Kotz + 3 others
ISBN: 9781337399074

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BuyFindarrow_forward

Chemistry & Chemical Reactivity

10th Edition
John C. Kotz + 3 others
ISBN: 9781337399074
Textbook Problem

Write the balanced, overall equation and the net ionic equation for the reaction of magnesium hydroxide with hydrochloric acid. (Hint: Think about the solubility guidelines.)

Interpretation Introduction

Interpretation:

The balanced and net ionic equation for the reaction of magnesium hydroxide with hydrochloric acid should be written.

Concept introduction:

The law of conservation of mass states that no atoms can be created or destroyed in a chemical reaction, therefore, the number of atoms present in the reactants is equal to the number of atoms present in the products.

Bronsted acid: An acid donates (loses) H+ ion.

Bronsted Base: A base accepts (gains) H+ ion.

Explanation

The balanced net ionic equation for the reaction of magnesium hydroxide with hydrochloric acid is given below

  Mg(OH)2(s) + 2HCl(aq) MgCl2(aq) + 2H2O(l)

Hydrochloric acid is a strong acid, it gives the H+ ion to magnesium hydroxide molecule and forms the MgCl2 ion.  This positive (H+) ion must be combined with negative counter ion OH- therefore, the formation of the product is Magnesium chloride (MgCl2).  Here Hydrochloric acid behaves as acid because it donates the proton

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