Question

3. How will you prove that gases have mass?
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Answer 1

Explanation:

The empty balloon's air escapes into the surrounding room and is no longer contained within the balloon. The compressed air in the balloon has a greater weight than the surrounding air. While the weight itself cannot be measured in this way, the experiment gives indirect evidence that air has mass.

Answer 2

Answer:

Balloons

Explanation:

When inflating a lead balloon with lead, it goes down, but when inflating it with helium, it floats away. but when blowing with the same air we breathe, it kinda,sorta, floats up and down. this can prove that not only air has mass but also can prove that different gases have different mass.