Question

What are the coefficients when the equation below is balanced?

_FE(s) + _O2(g) > _Fe2 O3(s)

a. 1,1,1
b. 2,1,1
c. 4,3,2
d. 10,5,2

Answer 1

The answer is C: 4,3,2

To balance an equation, you need to multiply the coefficient by the each subscript to see how much of each element there is on each side of the chemical equation. Use each set of coefficients with the equation until each side has the same amounts of each element.