A balloon filled with helium rises when you
let it go. A balloon filled with carbon dioxide
sinks. Explain the difference.

Question

A balloon filled with helium rises when you
let it go. A balloon filled with carbon dioxide
sinks. Explain the difference.

anonymous · Answer

Both gases have different densitys one is lighter than air (Helium) and the other is heavier than air (CO2)

callisto · Answer

molar mass of air ~ 32x21% + 28x78% = 28.56
molar mass of helium =4
molar mass of carbon dioxide = 12+16x2 = 44
You can see that molar mass <molar mass of air <molar mass of carbon dioxide ...
So, balloon filled with helium rises, while balloon filled with carbon dioxide sinks

unklerhaukus · Answer

when a truck with both sorts of balloons breaks suddenly,  what happens to the balloons?

unklerhaukus · Answer

the balloons are inside the truck.

unklerhaukus · Answer

the heavier that air balloon moves toward the front of the truck
the lighter that air balloon moves toward the back of the truck