7 - what is the mole ratio of aluminum to oxy...
7 - what is the mole ratio of aluminum to oxygen in the chemical reaction: 4al + 3o₂ --> 2al₂o₃
Answer
# Explanation:
## Step1: Identify stoichiometric coefficients
In the reaction \(4\text{Al} + 3\text{O}_2\to2\text{Al}_2\text{O}_3\), the coefficient of \(\text{Al}\) is \(4\) and of \(\text{O}_2\) is \(3\).
## Step2: Determine mole ratio
The mole ratio of \(\text{Al}\) to \(\text{O}_2\) is based on their coefficients. So it is \(4:3\).
# Answer:
\(4:3\) (the fourth option in the given choices)