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 Form 1 Chemistry Topical Questions and Answers on Air and Combustion

The diagram below represents a set-up that can be used to prepare and collect oxygen.
setup1342020919.png
(a)write an equation for the reaction that takes place
(b)what property of oxygen makes it possible for its collection as indicated by the diagram?
(c) explain why it is important not to collect any gas for the few seconds of the experiment.

 (6m 54s)
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