Question

1. choose the best answer. when the following equation is balanced, what is the coefficient for o₂? _ fe + _ o₂ → ___ fe₂o₃ 1 2 3 4

Explanation:

Step1: Solve Q11 via Le Chatelier's Principle

Le Chatelier's principle states that adding reactants drives equilibrium to consume excess reactants by forming more products.

Step2: Balance Fe in Q12

Match Fe atoms on both sides: $4\text{Fe} + \_\_\text{O}_2
ightarrow 2\text{Fe}_2\text{O}_3$

Step3: Balance O in Q12

Match O atoms on both sides: $4\text{Fe} + 3\text{O}_2
ightarrow 2\text{Fe}_2\text{O}_3$

Answer:

1. The reaction will shift toward the products.
2. 3