Question

Balance this equation and pick the answer with the coefficients that belong there.

A coefficient of 1 is understood but make the answers clear I will include the number 1.

Group of answer choices

2,3,6,1

2,3,6,1

3,1,2,1

3,2,1,6

4,6,6,2

Answer 1

2,3,6,1

2,3,6,1

Step-by-step explanation:

The unbalanced reaction expression is given as:

AlBr₃ + K₂SO₄ → KBr + Al₂(SO₄)₃

We need to balanced this reaction equation. Our approach is a mathematical method where we assign variable a,b,c and d as the coefficients.

aAlBr₃ + bK₂SO₄ → cKBr + dAl₂(SO₄)₃

Conserving Al; a = 2d

Br: 3a = c

K: 2b = c

S: b = 3d

O: 4b = 12d

Let a = 1, c = 3, d =
`(1)/(2)` b =
`(3)/(2)`

Multiply through by 2 to give;

a = 2, b = 3, c = 6 and d = 1

2AlBr₃ + 3K₂SO₄ → 6KBr + Al₂(SO₄)₃