Chemistry
What was the fifth unearthly element from the days of Aristotle?
More Questions from Chemistry
Which of the following activities is an example of changing a physical property?
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The temperature at which gas becomes liquid is considered what?
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What would you call the treatment of disease, usually cancer, by chemical agents?
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What gas in excited state is responsible for the bright red and yellow-green colors of the aurora?
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What is often used in advertising signs and produces a bright reddish-orange light?
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