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2

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(iii) What is the purpose of wrapping the beaker with cotton?

3

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*

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&

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,

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0

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#

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2

3

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#

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+

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&

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#,

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0

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2#

22

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(iii) State one assumption made while performing the expriment.

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(ii) -plain your answer for a (i)

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*

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