Question

describe an experiment to show oxygen is nessary for burning​

Answer 1

An expirment to show oxygen is necessary for burning are fallow-:

1)take two burning candle.

2)one glass.

3)cover one burning candle with glass

and one candle.

By this ,

after sometimes you will observe that,

candle which is covered with glass get

douse(burning of)and another candle

which are not covered get burning.

so,

by this experiment we show oxygen is necessary for burning.

Hii....friend

I think it will help you.

Answer 2

Yes. Oxygen is necessary for combustion. Lets prove tis with the help of the following experiment.

Experiment

Aim: To show that oxygen is necessary for combustion.

Material Required: Two candle, matchsticks and a bell jar.

Procedure:

1. Light up one of the candles using the matchsticks.
2. Now, light up the other candle and keep the bell jar over it.

Observation: The candle which was covered with the bell jar stopped burning and the other one kept burning.

Reason: As the other candle was covered, it used the the oxygen available to it and when, no oxygen was left, it extinguished. However, since the other one had complete supply of oxygen, it kept on glowing and burning.

Conclusion: Thus, we can conclude that oxygen is necessary for combustion.