Chemistry
lizbethmartinez
2016-04-17 03:28:27
Which of the following equations is balanced in an acidic solution? A. SO42- + 2H2O(l) + 2e- SO2(g) + 4OH- B. SO42- + 4H+ SO2(g) + 4OH- + 2H2O(l) C. SO42- + 2e- SO2(g) D. SO42- + 4H+ + 2e- SO2(g) + 2H2O(l)
ANSWERS
nbffn
2016-04-17 06:18:10

the answer the only equation which is balanced  in an acidic solution is D. SO42- + 4H+ + 2e- ------------------  SO2(g) + 2H2O(l) proof: it is an acid solution because we can see H+, presence of acid in solution A. SO42- + 2H2O(l) + 2e- SO2(g) + 4OH-  B. SO42- + 4H+ SO2(g) + 4OH- + 2H2O(l) are basic solution, cause we can observe on these solutions the presence of OH-,  as for SO42- + 2e- --------------------SO2(g)    it is not an acid solution

ADD ANSWER