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Answered

What property of gas is present in a hot air balloon?

Sagot :

BBOA93938IN

Answer:

helium or hydrogen

Explanation:

A gas balloon is a balloon that rises and floats in the air because it is filled with a gas lighter than air (such as helium or hydrogen). When not in flight, it is tethered to prevent it from flying away and is sealed at the bottom to prevent the escape of gas.

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GRACEGUINARES54IN

Answer:

Helium

Explanation:

Helium is an inert gas, which means that it does not react with other substances. It has the lowest boiling point of any element at -269C and a low density which is why it is used to make items float.

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