1.What volume of carbon dioxide (CO2) will be produced if 2.90 moles of iron (Fe) is produced? [Note: In the Gizmo, it is assumed that all gases are at standard temperature and pressure, or STP.] Given unit: ___2.9 Answer unit: Solution:

2. What mass of iron (Fe) can be obtained from 3.80 g iron (III) oxide (Fe2O3) reacting with excess carbon monoxide (CO)?

Given unit: 3.8 Answer unit: Solution:

3.How many moles of iron (Fe) will be produced from 6.20 moles of carbon monoxide (CO) reacting with excess iron (III) oxide (Fe2O3)?

Given unit: 6.2 Answer unit: Solution:
4.How many molecules of carbon monoxide (CO) are needed to react with excess iron (III) oxide (Fe2O3) to produce 11.6 g of iron (Fe)?

Given unit: ___11.6 Answer unit: Solution:
Fe2O3 + 3CO 2Fe + 3CO2