Chemistry

What kind of crystalline solid is a grain of sand?

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What group of elements include lithium, sodium, potassium, rubidium, cesium, and francium?
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Which of the following substances is industrially prepared by the contact process?
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What device controls temperature with a switch?
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What type of compound is prepared by the oxidation of primary alcohols?
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What halogen element exists as a liquid at room temperature?
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What symbol appears on the periodic table for Beryllium which has the atomic number 4?
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What element is the basis for organic chemistry, as it occurs in all living organisms?
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What sort of change happens to a head of lettuce when you cut it in half?
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