Question

Balance the following equation with the smallest whole number coefficients. Choose the answer that is the sum of the coefficients in the balanced equation. Do not forget coefficients of "one."
Cr2(SO4)3 + RbOH Cr(OH)3 + Rb2SO4

(a) 10
(b) 12
(c) 13
(d) 14
(e) 15

Answer 1

Cr2(SO4)3 + 6RbOH --> 2Cr(OH)3 + 3Rb2SO4

1 + 6 + 2 + 3 = 12 (b)