The unbalanced equation below occurs in acidic solution

CHEMISTRY · Single correct · AP · Chemistry · Chemical Reactions · Chemical Reactions

Problem

The unbalanced equation below occurs in acidic solution.

\text{Cr}_2\text{O}_7^{2-} + \text{I}^- \rightarrow \text{Cr}^{3+} + \text{IO}_3^-

When the equation is completely balanced using the smallest whole-number coefficients, what is the coefficient of

\text{H}_2\text{O}

? (a)

6

(b)

4

(c)

3

(d)

7