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Did you know?

In 1864, the first barbiturate (barbituric acid) was synthesized.

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On average, someone in the United States has a stroke about every 40 seconds. This is about 795,000 people per year.

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Pubic lice (crabs) are usually spread through sexual contact. You cannot catch them by using a public toilet.

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The FDA recognizes 118 routes of administration.

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There are over 65,000 known species of protozoa. About 10,000 species are parasitic.

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Video: The pH scale - Strong acids and Weak acids

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