If carbon dioxide is streamed over silicon in the right conditions, you can prod

Question

If carbon dioxide is streamed over silicon in the right conditions, you can produce solid carbon and silicon dioxide: CO2 + Si ? SiO2 + C. Suppose if you stream 1.50 mole of CO2 over 1.50 mole of Si. Which of the choices below represent a true statement about this reaction? NOTE: All numbers located immediately after elemental symbols should be considered subscripts.

A.

The CO2 is the limiting reactant.

B.

The SiO2 is the limiting reactant.

C.

You have equal stoichiometric amounts of reactants

D.

The Si is the limiting reactant.

E.

none of these are true

Explanation / Answer

The balanced reaction

CO2 + Si = SiO2 + C

Stoichiometric Molar ratio of CO2 : Si = 1 : 1

Moles of SiO2 consumed = moles of Si consumed = moles of SiO2 produced = moles of C produced

Given Molar ratio of CO2 : Si = 1.50 : 1.50 = 1 : 1

Stoichiometric Molar Ratio and given molar ration is same.

You have equal stoichiometric amounts of reactants

Option C is the correct answer

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