3. After the reaction Cl2 → CI-+ ClO3- (in a basic solution) is balanced with the smallest whole-number coefficients, which of the following statements is correct?
(A)The coefficient of OH- is 12.
(B)Water is on the reactant side with a coefficient of 3.
(C)CI- and ClO3- are produced in a 1:1 mole ratio.
(D)1 mole of Cl2 will produce 2 moles of CI-.
(E)The sum of all coefficients is equal to 18.