Question

In the reaction _S+302 +2SO3, what coefficient should be placed in front of the S to balance the reaction?

A. 1
B. 2
C. 3
D.5​

Answer 1

B. 2

Step-by-step explanation:

The reaction expression is given as:

_S + 3O₂ → 2SO₃

Now let us balanced the expression;

On the product side we have 2 moles of S

On the reactant side we should have 2moles of S

So, we put the coefficient 2 to balance the expression;

We have 6 moles oxygen on both sides