Examine the reaction equation. CaO(s) + Al(s) → Al2O3(s) + Ca(s)

What coefficients will balance the equation?

a. 3, 2, 1, 3
b. 3, 1, 2, 3
c. 2, 1, 2, 1
d. 3, 2, 0, 3

Explanation:

The answer is A (3,2,1,3)

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