Burning+and+oxygen

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Burning and oxygen
Aim: To show that the gas involved in combustion is oxygen.

Diagram

Method What was measured? 3times >>average Why did the candle rise?

Results Volume used = Total volume - Volume remaining % gas used = Average volume used/Total volume x 100 = (Total volume - Volume remaining)/Total volume X 100
 * || Volume gas used cm 3 ||
 * 1 ||  ||
 * 2 ||  ||
 * 3 ||  ||
 * Average ||  ||

Conclusion Which one? Why? Accurate?

Mark scheme