Question

hey guys answer this fast​

Answer 1

Answer:

1..oxygen

2..use in respiration

3..no..as it is covered so oxygen levels will decrease

4 .water level will rise due to thermal expansion.

5.co2

Answer 2

Answer:

Hey here is your answer -

a) Oxygen.

b) Oxygen is the most essential gas for a living organism to respirate.

c) No, the candle will not burn for long because the quantity of oxygen inside the jar will be finished .

i.e oxygen is essential for burning.

d) Yes , the water level in the jar will increase because the candle burns the oxygen making empty space , so the water level rises to fill the empty space .

e) The main gas left in the jar after burning will be Hydrocarbon, Hydrogen from the water and carbon release by burning of candle .

Hope it helps ! : )