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The ratio of hydrogen atoms to oxygen in water (H2O) is 2:1.
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Nitroglycerin is used to alleviate various heart-related conditions, and it is also the chief component of dynamite (but mixed in a solid clay base to stabilize it).
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Human stomach acid is strong enough to dissolve small pieces of metal such as razor blades or staples.
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All adults should have their cholesterol levels checked once every 5 years. During 2009–2010, 69.4% of Americans age 20 and older reported having their cholesterol checked within the last five years.
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This year, an estimated 1.4 million Americans will have a new or recurrent heart attack.