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Welders use helium(He) and argon(Ar) gases to blow over the metal during the welding process. Why would they want to use these two gases?

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Welders use helium(He) and argon(Ar) gases to blow over the metal during the welding process. Why would they want to use these two gases?

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The inert nature of helium and argon make it uses in the welding process. They are used to create a protective atmosphere around the welding site. During welding, there will be potential differe...

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Chemistry

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