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Author Question: How to find total number of valence electrons in molecules? (Read 564 times) |
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About 100 new prescription or over-the-counter drugs come into the U.S. market every year.
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Complications of influenza include: bacterial pneumonia, ear and sinus infections, dehydration, and worsening of chronic conditions such as asthma, congestive heart failure, or diabetes.
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Many of the drugs used by neuroscientists are derived from toxic plants and venomous animals (such as snakes, spiders, snails, and puffer fish).
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Although puberty usually occurs in the early teenage years, the world's youngest parents were two Chinese children who had their first baby when they were 8 and 9 years of age.
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Bacteria have flourished on the earth for over three billion years. They were the first life forms on the planet.