In the reaction 2H2O (l) + 2Cl– (aq) → H2 (g) + Cl2 (g) + 2OH– (aq), how many electrons are transferred?
1 answer:
C. 2
2H_2O + <u>2e </u>^(-) → H_2 + 2OH^(-)
2Cl^(-) → Cl_2 + <u>2e </u>^(-)
2H_2O +Cl^(-) + <u>2e </u>^(-) → H_2 + Cl_2 + 2OH^(-) + 2e ^(-)
2H_2O +2Cl^(-) → H_2 + Cl_2 + 2OH^(-)
This is a <em>redox reaction </em> in which two chloride ions transfer two electrons to two molecules of water.
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