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A and B C and D . Band C Question 9 (1 point) What is the coefficient value of hydrochloric acid in the molecular equation fo Question 9 plz
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Answer #1

Chemical formula of magnesium hydroxide is Mg(OH)2. Magnesium hydroxideis a base which can be neutralized by treating with acid. It reacts with HCl in following way:

Mg(OH)2                                                                 Mg2+ + 2 OH-

(HCl                                          H+ + Cl- ) X 2

(H+ + OH-                                          H2O) X 2

Mg(OH)2 + 2 HCl                                        MgCl2 + 2H2O

So coefficient of HCl in molecular equation will be 2.

Note: Arrow is not showing in the answer due to some technical problem. Kindly ignore that.

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