For the reaction Na_2SO_4 + 2 C rightarrow Na_2S + 2CO_2, what is the molar rati

Question

For the reaction Na_2SO_4 + 2 C rightarrow Na_2S + 2CO_2, what is the molar ratio used to determine how many mo a. 1 mol C: 1 mol Na_2S b. 1 mol Na_2sO_4: 2 mol C c. 2 mol C: 1 mol Na_2S d. 1 mol Na_2SO_4: 1 mol What is the balanced chemical reaction when Iron (III) oxide reacts with pure Carbon to produce Iron meta a. 4 Fe_2O_3 + 6 C rightarrow 8 Fe + 6 CO_2 b. 2 FeO + C rightarrow 2 Fe + CO_2 c. 2 Fe_3O + C rightarrow 6 Fe + CO_2 d. 2 Fe_2O_3 + 3 C rightarrow 4 Fe + 3 CO_2 When the reaction given is balanced, there are atoms of oxygen and NH_4C_2H_3O_2(aq) How many moles of hydrogen gas are needed to react with 0.50 mole of oxygen to form one mole of water. 2 H_2 (g) + O_2 (g) rightarrow 2 H_2O (I)

Explanation / Answer

(8) The balanced equation is : Na2SO4 + 2C ----> Na2S + 2CO2

So the molar ratio is : 1 mole Na2SO4 :  2 mol C

So option (b) is correct

(9) The balanced reaction is : 2Fe2O3 + 3C ----> 4Fe + 3CO2

So option (d) is correct

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