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Chemistry Paper 5 (CIE): What is divided flasks?

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sonatinalai:
Thanks for the help! So let me summarise....

A 'divided flask' is a flask which has a thin sheet of glass separating its content into compartments, so that reagent in each compartment would not be in contact before the apparatus is assembled completely, eg. air-tight condition.
To start experiment, shake the 'divided flask' so that the glass will no longer separate the reagents, thus starting off the reaction.

Will that be fine?

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