I think the answer is 20 moles
Answer:
20 moles
Explanation:
The important thing to realize here is that you're working under STP conditions, which implies that you can use the molar volume of a gas at STP to find how many moles of helium will occupy that volume.
If you meant Atoms then the answer is false
It's a mixture.
Answer from Edgenuity
Thermal Transfer.