Question

@Abhisar @superhelp101
I have chemistry questions. I did all but two questions that I have no idea how to do. Here are the questions:

1.)Given the reaction, Fe2O3 + 3 CO > 2 Fe + 3 CO2, if 12.0 moles of CO2 are made, then how many moles of CO were used?
12.0 moles
6.0 moles
4.0 moles
3.0 moles

2.)Given the balanced equation, 4 NH3 + 3 O2 > 2 N2 + 6 H2O, what is the molar ratio of NH3 to N2?
3:2
4:6
2:4
4:2

3.)Given the reaction, H2 + Cl2 > 2HCl, if 12.0 moles of HCl were made, then how many moles of H2 were used?
24.0 moles
12.0 moles
6.0 moles

Answer 1

These are the rest of the questions. I hope you can read them

Answer 2

Questions 10-12 I don't understand at all.
The Answers I got are:
1.)A
2.)D
3.)C
4.)A
5.)B
6.)C
7.)A
8.)B
9.)TRUE
10.)
11.)I THINK D
12.)
13.)TRUE
14.)FALSE

Answer 3

For 1 since ratio of moles on both the sides equal that is 1:1 so there are 12 moles
For 2 ratio is 4:2 as can be seen from equation
ANC in 3 since ratio of H2:HCl is 1:2 so there are 6 moles for hydrogen

Answer 4

@ASRA_SALEEM Thank you!! That is what I got on the first three. I posted the others through a link, maybe you can help me.

Answer 5

Yeah sure

Answer 6

In 4.since ratio is 1:5 so there are 2 mol of C5H12 for 10 mol of CO2
In 5 since ratio is 3:2 so the answer is 4 mol of Fe2O3
In 6 since ratio is 1:2 so the answer is 12 mol of H2O

Answer 7

ok thank you very much on the next three. im surprised I got all the right answers so far

Answer 8

I got 10 as c and 12 as d