Question

please answer it please​

Answer 1

Answer:

The testubes which contains the gases will not be equal . one if the tubes have more gas than the other .

Since hydrogen : oxygen = 2 : 1

The gas is double the oxygen . So the tube with more gas is hydrogen and less gas is oxygen

Answer 2

Answer:

we will take a burning matchstick towards it n it will make a pop up sound it's a test for hydrogen gas .

;)