Balance the Half-Reaction in Acidic Solution and Determine the Coefficient

question 29

Multiple Choice

Balance the half-reaction in acidic solution and determine the coefficient for hydrogen ion:
___ Cr³⁺ + ___ H₂O ___ Cr₂O₇^2- + ___ H⁺

• A)2
• B)5
• C)8
• D)11
• E)14