How would you show that air is needed for combination?
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Explanation:
When the burning candle is covered with gas jar, then the candle takes away the oxygen necessary for burning from the air enclosed in the gas jar. ... This proves that air is necessary for combustion of substances.
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Answer:
activity: take a candle and fixed on a table.. The candle is lighted...the candle will continue to burn due to continously available fresh air providing the required oxygen for combustion.... ... this proves that air is necessary for combustion of substances....
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