Chemistry

What kind of crystalline solid is a grain of sand?

More Questions from Chemistry
What orbital is described by the quantum numbers: n=3 and l=2?
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Lutetium on the periodic table is noted by which symbol?
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What is the abbreviation for an element called?
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Which of these is a fuel?
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Which of these is an element?
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Which metal contains 60% copper and 40% zinc?
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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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While acids dissolve most metals, what special mixture of acids is used to dissolve gold?
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