Chemistry
How many hydrogen atoms are needed to combine with one oxygen atom to form a molecule of water?
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What soft metal combines with chlorine to make table salt?
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What gas is necessary for respiration and aids fires in burning?
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What element's reduced form is found in toothpaste and helps prevent tooth decay?
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Most of the oxygen in the air is produced by what chemical process?
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Potassium on the periodic table is noted by which symbol?
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What symbol appears on the periodic table for the element with the atomic number 2?
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What is the most abundant gas in Earth's atmosphere?
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What is the chemical element cadmium mostly used for?
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What element is a common ingredient and bleach alternative in laundry detergent?
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