solve this science problem
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Answer:
helium
Explanation:
If you buy a balloon from a vendor, it's probably filled with helium. Helium is a gas like air; in fact, air has some helium in it. But helium is lighter that air. If you take the same volume of air and helium and weigh them on a scale, the helium would weigh less.
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Answer:
A balloon can be defined as an inflatable flexible bag filled with a gas, such as helium, hydrogen, nitrous oxide, oxygen, or air.
Explanation:
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