Problem: For each of the given situations, indicate whether S or O2 is the limiting reactant. Drag each item to the appropriate bin.Elemental S reacts with O2 to form SO3 according to the reaction2 S + 3 O2 → 2 SO3as depicted here.Limiting reactantNext, consider a situation in which all of the S is consumed before all of the O2 reacts, or one in which you have excess S because all of the O2 has been used up.

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Problem Details

For each of the given situations, indicate whether S or O2 is the limiting reactant. 

Drag each item to the appropriate bin.


Elemental S reacts with O2 to form SO3 according to the reaction

2 S + 3 O2 → 2 SO3

as depicted here.

Limiting reactant

Next, consider a situation in which all of the S is consumed before all of the O2 reacts, or one in which you have excess S because all of the O2 has been used up.

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What scientific concept do you need to know in order to solve this problem?

Our tutors have indicated that to solve this problem you will need to apply the Limiting Reagent concept. If you need more Limiting Reagent practice, you can also practice Limiting Reagent practice problems.