Please, please help... neutralization?I am just really confused.  I know that neutralization is a reaction in which an acid reacts with a base to form a salt and water.  However, I am just...

Please, please help... neutralization?

I am just really confused.  I know that neutralization is a reaction in which an acid reacts with a base to form a salt and water.  However, I am just wondering if the reaction between magnesium and hydrochloric acid would be a neutralization reaction because water is not formed.  Thank you for answering if you do. :) x

Asked on by iarora

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bandmanjoe's profile pic

bandmanjoe | Middle School Teacher | (Level 2) Senior Educator

Posted on

In a neutralization reaction, you are correct, an acid combined with a base will produce a salt plus water.  But if you combine magnesium with hydrochloric acid, what you have here is not a neutralization between an acid and a base, but rather what is called a "single-replacement reaction".  Magnesium by itself is a simple element, not an acid or a base.  Hydrochloric acid is a strong acid.  The magnesium dsplaces the hydrogen, combines with the chlorine ion to make magnesium chloride, a salt, and liberates hydrogen gas.  There are four types of basic reactions that would be helpful to remember.  They are: 1) synthesis, which is this plus that will produce a new compound, 2) decomposition, the exact opposite of the synthesis, 3) the single-replacement, which is what you have here, and 4) the double replacement, where two compounds switch partners. 

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kittmanch's profile pic

kittmanch | Student, Grade 10 | (Level 1) Honors

Posted on

acid + base --> salt + water

BUT, magnaesium is neither a base nor an acid.

the reaction between magnesium and hydrochloric acid is as follows:

Mg + HCl --> MgCl2 + H2[gas]


 !HOPE THIS HELPED! :)

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