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Chemistry
What is used to remove oxygen from cathode ray tubes and vacuum tubes?
Chemistry
What is used to remove oxygen from cathode ray tubes and vacuum tubes?
Barium
Strontium
Radium
Calcium
More Questions from Chemistry
What symbol appears on the periodic table for the element with the atomic number 58?
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What is the name for naturally-occurring alloy of gold and silver with a small amount of other metals?
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What is the name of a hydrocarbon with two carbons sp^2 hybridized?
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Felix Hoffmann, not Bayer, first patented what remedy?
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What's the chemical symbol for water?
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Which is more abundant in the earth's crust?
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Which of the following is a pH of an acid?
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Lithium on the periodic table is noted by which symbol?
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