CHEMICAL COMPOUNDS

Chemical compounds are substances that form when two or more elements are joined together. Most of the atoms that form living organisms and the Earth's crust are in compound form. Check out these great articles on chemical compounds.

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How does chlorine bleach work?

I recently used chlorine bleach to clean the siding on my house, and I was amazed at how well it worked! What is bleach? How does it remove stains? Is the chlorine in bleach the same as the chlorine in drinking water or in swimming pools? Is chlorine safe to use?

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  • 10 Performance-enhancing Drugs That Aren't Steroids
    10 Performance-enhancing Drugs That Aren't Steroids

    Lance Armstrong, Jose Canseco, Mark McGwire: The list of superstar athletes accused of -- or admitting to -- taking performance-enhancing drugs is almost as impressive as the number of sports that they compete in. And we're not just talking about steroids anymore. See more »

  • Are compounding pharmacies regulated?
    Are compounding pharmacies regulated?

    Compounding pharmacies don't usually get a lot of media coverage for good news. It's the mistakes that tend to make the evening news. It turns out that U.S. regulatory practices for compounding pharmacies tend to follow much the same pattern. See more »

  • Brewing, Distilling and Denaturing: Test Your Alcohol Knowledge
    Brewing, Distilling and Denaturing: Test Your Alcohol Knowledge

    Booze, hooch, devil's brew. Whatever name you call it, alcohol is really just a combination of carbon, hydrogen and oxygen molecules. But this simple compound can have a complicated effect on our bodies. How do we process alcohol, and what lasting ma See more »

  • How Alcohol Works
    How Alcohol Works

    About two-thirds of all adults partake in this mind-altering substance, yet many do not consider it a drug. But if you've ever seen someone who's had too much to drink, you know that alcohol has profound effects on the mind and body. See more »

  • How Anesthesia Works
    How Anesthesia Works

    If the idea of being completely knocked out by a cocktail of drugs while doctors operate on you freaks you out, you're not the only one. But that's not what anesthesia is all about it -- and it might scare you less if you understand how it works. See more »

  • How Aphrodisiacs Work
    How Aphrodisiacs Work

    Most of us have heard the talk about oysters and chocolate, and maybe you've read an article about the stimulating effects of ginseng. But garlic, licorice and cucumber? Learn about the history of aphrodisiacs and whether they've been proven to be effective. See more »

  • How Bath Salts Work
    How Bath Salts Work

    For a time, this designer drug was legal and available. And then ERs across the U.S. recorded 23,000 visits associated with bath salts in 2011, and the U.S. banned them and other synthetic drugs in 2012. What's the scoop on this relative newcomer? See more »

  • How Caffeine Works
    How Caffeine Works

    About 90 percent of Americans consume some form of caffeine every day: It's our most popular drug by far. What's so special about this stimulant? See more »

  • How Crack Cocaine Works
    How Crack Cocaine Works

    Crack cocaine, like many other illegal drugs, leads to addiction, death, increased crime rates and imprisonment. But crack is also in a class of its own: This drug targets the inner city almost exclusively and carries with it addiction rates unmatched by most other drugs of its kind. See more »

  • How LSD Works
    How LSD Works

    Can you pass the acid test? That electric Kool-Aid changed the fabric of 1960's American counterculture. So what's it's like to trip on LSD? See more »

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