Explain why is it important to clean the surface of the zinc

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Why is it important to clean the surface of the zinc and copper electrodes with 1 M HNO3 immeadiately before using them in this experiment.

Reference no: EM13243870

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Explain why is it important to clean the surface of the zinc : Why is it important to clean the surface of the zinc and copper electrodes with 1 M HNO3 immeadiately before using them in this experiment.
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