Balancing Chemical Equations Video Lessons

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Concept: Balancing Chemical Reactions

Problem: What is the stoichiometric coefficient for manganese dioxide when the chemical equation is balanced using the smallest, whole-number stoichiometric coefficients? MnO2 + HCl → MnCl2 + Cl2 + H2OA. 1B. 2C. 3D. 4E. None of these

FREE Expert Solution

We’re being asked to determine the coefficients of manganese dioxide (MnO2) when the given chemical equation is balanced.


Recall that when balancing chemical equations, we have to make sure that the number of elements on both sides is equal with the lowest whole number coefficients.



MnO2 + HCl → MnCl2 + Cl2 + H2O

Mn     1

O      2

H      1

Cl      1

Mn  1

O    1

H    2

Cl    4


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Problem Details

What is the stoichiometric coefficient for manganese dioxide when the chemical equation is balanced using the smallest, whole-number stoichiometric coefficients? 

MnO2 + HCl → MnCl2 + Cl2 + H2O

A. 1

B. 2

C. 3

D. 4

E. None of these

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