Aluminum oxide, AI2O3, decomposes into aluminum, AI, and oxygen gas, O2. Which ratio of aluminum to oxygen gas is in the products of the reaction?
A. 1:3
B. 2:3
C. 3:2
D. 4:3
The balanced chemical equation for the decomposition of aluminum oxide is:
2Al2O3 -> 4Al + 3O2
From the equation, we can see that for every 2 moles of aluminum oxide that decompose, we get 4 moles of aluminum and 3 moles of oxygen gas.
Therefore, the ratio of aluminum to oxygen gas in the products is 4:3.
The correct answer is D. 4:3.