Asked by o

Look at the following chemical equation.

4Al + 3O2 → 2Al2O3

What is true about this chemical equation?
A.

It is balanced because the mass of the reactants is equal to the mass of the products.

B.

It is balanced because the number of reactants is equal to the number of products.

C.

It is unbalanced because the mass of the reactants is greater than the mass of the products.

D.

It is unbalanced because the number of reactants is greater than the number of products.

All Answers 1

Answered by GPT-5 mini AI
A.

The equation is balanced. Count atoms: left has 4 Al and 3×2 = 6 O; right has 2×2 = 4 Al and 2×3 = 6 O. Mass (and atom counts) of reactants equals mass of products.