Question

Which of the following is a valid mole ratio from the balanced equation 2Fe2O3 + 3C --> 4Fe + 3CO2?

2 mol Fe2O3
4 mol Fe

4 mol C
3 mol Fe

2 mol Fe2O3
4 mol C

3 mol C
4 mol CO2

Answer 1

Valid mole ratios from the balanced equation 2Fe2O3 + 3C → 4Fe + 3CO2 are '2 mol Fe2O3 to 4 mol Fe' and '3 mol C to 4 mol CO2'. These ratios are derived from the coefficients in the chemical equation.

Step-by-step explanation:

The student is asking about determining the valid mole ratio from a balanced chemical equation. In the provided equation, 2Fe2O3 + 3C → 4Fe + 3CO2, mole ratios can be derived from the coefficients of each substance. These coefficients represent the number of moles that react or are produced.

For instance:

• 2 mol Fe2O3 : 4 mol Fe (from 2Fe2O3 → 4Fe)
• 3 mol C : 3 mol CO2 (from 3C → 3CO2)

Therefore, the valid mole ratios that can be derived from this balanced equation are '2 mol Fe2O3 to 4 mol Fe' and '3 mol C to 4 mol CO2'.