Question

2. A lit candle on a cork was floated in a tub of water and a glass jar was placed upside-down on it. The drawings below show the setup for the experiment and the result of the experiment. What could be concluded from this result?



A . the most important gas in air is oxygen
B. the burning candle went out because the wick ran out
C. the burning candle went out because it got wet
D. the burning candle changed the volume of the air in the jar

Answer 1

(A) the most important gas in air is oxygen which supports burning.