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# Odd-Even Balancing

APCHEM-KVEQBC

When balanced using smallest, whole-number coefficients, the correct coefficients for the following equation are

$$\_ \_ \_ \ Al{ Cl }_{ 3 }\ +\ \_ \_ \_ \_ \ { H }_{ 2 }S{ O }_{ 4\ }\rightarrow \ \_ \_ \_ \_ \ { Al }_{ 2 }(S{ O }_{ 4 }{ ) }_{ 3 }\ +\ \_ \_ \_ \_ \ HCl$$

A

2, 1, 1, 2

B

2, 3, 1, 6

C

1, 3, 1, 3

D

2, 3, 1, 3