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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?
Calcium
Barium
Strontium
Radium
More Questions from Chemistry
What element was named after the planet Uranus?
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What chemical substance is abbreviated CO2?
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What is an atom that has more electrons than normal referred to as?
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What is the half-life of Rubidium-Strontium 87?
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The temperature at which gas becomes liquid is considered what?
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Who is generally credited with discovering the electron?
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Praseodymium on the periodic table is noted by which symbol?
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The red color of rubies is caused mainly by the presence of what element?
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