Stoichiometry - Mole to Mole Conversion

Coefficients in balanced equations tells us the number of moles reacted or produced. They can also be used as conversion factors. With mole conversions, remember: WHAT YOU NEED OVER WHAT YOU HAVE.
Examples:

1. If 0.15mol of methane are consumed in a combustion reaction, how many moles of CO2 are produced? (refer to picture for answer)
2. How many moles of bauxite (Aluminum Oxide) are required to produce 1.8 moles of pure Aluminum?