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OpenStudy (anonymous):
When the half-reactions Br2 +2e- ? 2Br- and Na ? Na+ +e- are combined, the balanced redox equation is _____. A. Na + Br2 +e- ? Na+ + 2Br- B. 2Na + Br2 ? 2Na+ + 2Br- C. Na + Br2 ? Na+ + 2Br- D. 2Na + Br2 + 2e- ? 2Na+ + 2Br- + e-
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OpenStudy (aaronq):
you need to have the atoms and charges balanced on both sides. Hint: ions add to the charge
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