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Helium is used to fill airships and balloons because?

Answer:

Helium is used in air-ships and balloons because the chemicals mixed together to make the gas, float and when used inside airships and balloons they float, and when you breathe it in it causes your voice to go VERY high pitched.

First answer by T1GG3R100. Last edit by T1GG3R100. Contributor trust: 1 [recommend contributor recommended]. Question popularity: 3 [Recommended].

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