Chemistry

What is used to remove oxygen from cathode ray tubes and vacuum tubes?

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What contain most of the calcium ion in the human body?
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What metal is used in airplanes for its lightweight properties?
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Which suicidal 19th century chemist has the single line etched on his tombstone "S=k log W"?
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What do city trucks spread on roads to melt ice?
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Most metals are gray in color; what is the only metal that is yellow?
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Which atomic particle is outside the nucleus?
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Which noble gas has "A" as its first letter?
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Which of these is an element?
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