Problem: Balance the following equations by inserting the proper coefficients.11. ____ H2 + ___ SO2 → ____ H2S + ___H2O12. __ CaCO3 + ___SO2+ ____ O2 → ___CaSO4 + ____ CO2

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We’re being asked to balance the given equations.


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.


Reaction 1:

_____ H2 + ___ SO2 → ____ H2S + ___H2O

H      2

S      1
O      2

H      4

S      1
O      1


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Problem Details
Balance the following equations by inserting the proper coefficients.

11. ____ H2 + ___ SO2 → ____ H2S + ___H2O
12. __ CaCO3 + ___SO2+ ____ O2 → ___CaSO4 + ____ CO2

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Our tutors have indicated that to solve this problem you will need to apply the Balancing Chemical Equations concept. You can view video lessons to learn Balancing Chemical Equations. Or if you need more Balancing Chemical Equations practice, you can also practice Balancing Chemical Equations practice problems.