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 Form 1 Chemistry Topical Questions and Answers on Air and Combustion

The set-up below was used to study some properties of air.
air1342020934.png
State and explain two observations that would be made at the end of the experiment.

 (4m 44s)
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Answer Text:
-iron wool turns brown or rusts due to formation of hydrated iron(III)oxide
-level of water inside the tube rises to occupy the space left by oxygen.


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