Chemistry

What state of matter is air?

More Questions from Chemistry
How many elements with atomic number below 100 have their symbols starting with an upper case T?
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What is the half-life of Rubidium-Strontium 87?
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If you crush a diamond, what color is the dust?
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Heavy water contains what isotopic form of hydrogen?
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What metal is known for the chemical compounds it forms, such as emeralds and aquamarines?
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What element gets its name from the Greek word "kryptos" meaning "the hidden one"?
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What is the chemical symbol for lead?
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Who discovered calcium and barium?
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