Question

Examine the equation of a reversible reaction.

2SO2 + O2 ⇌ 2SO3


Which of the answer choices correctly lists the reverse reaction?


2SO2 + 2SO3 → O2


2SO3 + 2SO2 → O2


2SO3 + O2 → 2SO2


2SO2 + O2 → 2SO3

Answer 1

2SO3 -> 2SO2 + O2 (not shown in the options)

Step-by-step explanation:

In a reversible reaction, reactants react to produce products and products react to produce reactants, simultaneously.

Given the reversible reaction:

2SO2 + O2 ⇌ 2SO3

It has a forward reaction:

2SO2 + O2 -> 2SO3

and a reverse reaction:

2SO2 + O2 <- 2SO3