Balance the following oxidation-reduction reaction using the oxidation number me
ID: 626236 • Letter: B
Question
Balance the following oxidation-reduction reaction using the oxidation number method: Fe + Cl2 ? Fe3+ + ClExplanation / Answer
Fe -----> Fe3+ balancing the charge Fe ------> Fe3+ + 3e-.............1 Cl2 -------> Cl- balancing the chlorine Cl2 -------> 2Cl- now balancing the charge Cl2 + 2e- -------> 2Cl- ................2 multiplying equation (1) with 2 and multiplying equation (2) with 3 and adding equation (1) and (2) 2Fe + 3Cl2 + 6e- --------> 2Fe3+ + 6Cl- + 6e- eliminating electrons 2Fe + 3Cl2 ---------> 2Fe3+ + 6Cl- so coefficient of Cl- is 6
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