# 11th grade

Why do we need to polish magnesium before using it in an experiment?

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asked by Kace
1. Isn't it coated with an impervious oxide?

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2. so we need to get rid of it in order to have a reaction from pure magnesium?

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posted by Kace
3. You need to move it off so the magnesium surface is exposed.

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4. ahh i see now
thanks alot!

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posted by Kace

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