Answered

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Once balanced, what is the coefficient of HCl in the following reaction:

Mg + HCl → MgCl2 + H2

Group of answer choices

A. 1

B. 2

C. 0

D. 3

Sagot :

samueladesida43

Once balanced, the coefficient of HCl in the following reaction: Mg + HCl → MgCl2 + H2 is 2 (option B).

How is a chemical reaction balanced?

A chemical reaction is said to be balanced when the number of moles of each atom of an element on both sides of the equation is the same.

According to this question, magnesium reacts with hydrochloric acid to form magnesium chloride and hydrogen gas as follows:

Mg + HCl → MgCl2 + H2

However, to balance the equation, we make use of coefficients, which are numbers placed in front of a compound to make the number of moles of atoms equal.

The balanced equation is as follows:

Mg + 2HCl → MgCl2 + H2

Therefore, once balanced, the coefficient of HCl in the following reaction: Mg + HCl → MgCl2 + H2 is 2.

Learn more about balanced equation at: https://brainly.com/question/7181548

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