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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?
Radium
Barium
Strontium
Calcium
More Questions from Chemistry
What is known as the energy required to start a chemical reaction?
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What does the pH scale usually range from?
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What is a mixture of gases that can be stored and transported like natural gas?
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What element has an atomic number of 40?
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What is the second most abundant element by mass (about 18.5%) in the human body?
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What chemical substance is abbreviated CO2?
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Which is not considered a fossil fuel?
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What are vast amounts of oil that have become trapped in one place called?
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