Could someone please check my answers for chemistry?

Question

If I was wrong could you please explain.

In a balanced chemical equation the number of moles of products must be equal to the number of moles of reactants.

I said (True)

A number in front of a formula in a balanced equation represents the number of moles of that substance in the chemical change.

I said (True)

A mole ratio is defined as a ratio of the number of moles of reactants to the moles of products.

I said (False)

A mole ratio is a ratio between the number of moles of any two species involved in a chemical reaction.

I said (True)

The reactant with the fewest number of moles is the limiting reactant in a chemical reaction.

I said (True)

For the following I have no clue on where to start, could you please show the steps to get to the correct answer.

If one mole of SO2 was obtained by the reaction of one mole of CS2 with O2 according to the balanced equation: CS2 + 3O2 ---->CO2 + 2SO2
Then which of the following statements would be true?
A. The yield of SO2 is 100%
B. The yield of SO2 is 32.0g
C. The yield of SO2 is 64%
D. More than 30g of oxygen reacted with the CS

Answer 1

False, moles are not conserved

Example N2 + 3H2 -> 2NH3

True

Depends on the context

Depends on the context

True.