4
QuizMultiple Choice
Lab: Measuring pH — Unit test
Question 4 • 2026-2027_MDCPS_2003345_Chemistry_1_B-CR
A student is asked to balance an equation by using the half-reaction method. He determines the two half reactions as shown below.What should he write as the final, balanced equation?
Answer
A
Upper C l subscript 2 plus 2 upper B r superscript minus right arrow upper B r subscript 2 plus 2 upper C l superscript minus.
B
Upper C l subscript 2 plus 2 upper B r superscript minus, plus 2 e superscript minus right arrow upper B r subscript 2 plus 2 upper C l superscript minus.
C
Upper C l subscript 2 plus 2 upper B r superscript minus right arrow upper B r subscript 2 plus 2 upper C l superscript minus, plus 2 e superscript minus.
D
Upper C l subscript 2 plus upper B r superscript minus plus 2 e superscript minus right arrow upper B r subscript 2 plus upper C l superscript minus, plus 2 e superscript minus.