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Chemistry: Featured Facts
Knocking the NOx Out of Coal
Chemistry / Atmospheric Chemistry

Air is mostly nitrogen molecules (green in the above diagram) and oxygen molecules (purple). When heated hot enough (around 3000 degrees F), the molecules break apart and oxygen atoms link with the nitrogen atoms to form NOx, an air pollutant. Nitrogen is the most common part of the air we breathe. In fact, about 80% of the air is nitrogen. Normally, nitrogen atoms float around joined to each other like chemical couples. But when air is hea continue reading this fact

What is Oxidation?
Chemistry / Chemical Properties

The term 'oxidation' derives from the ancient observation of rust (oxide) formation. Early chemists could determine an increase in the weight of a metal as it apparently captured something from the ai continue reading this fact

It's Crying Time Again
Chemistry / Chemical Reactions

Onions If you've ever spent any time in the kitchen, you know that slicing, chopping or dicing raw onions makes you cry. This vegetable has been doing this to humans for a long time. The onion is believed to continue reading this fact

All Facts
Atmospheric Chemistry:
  1. Knocking the NOx Out of Coal
  2. Ozone: Good Up High, Bad Nearby
  3. SO2: What is it? Where does it come from?
Chemical Composition:
  1. Liquid Glass Is All Wet
Chemical Properties:
  1. Carbon Dating
  2. Oil Viscosity
  3. The Melting Point
  4. What Is A Mole?
  5. What is Oxidation?
  6. What Is pH?
Chemical Reactions:
  1. Catalysts
  2. Chemical Burning
  3. Exploding Fertilizer
  4. Fire Retardant Gels
  5. How Sublime
  6. It's Crying Time Again
  7. Luminol; Trick-or-Treat or Terrible Feat
  8. Spontaneous Combustion
  9. Warmer Hands (And Toes) Through Chemistry
  10. What Are Aerosols?
  11. What Give Batteries Their Charge?
  12. What Is Reduction?
  13. What Makes a Candle Burn?
  14. When Chlorine Met Sodium...
  15. Why Does Cement Set?
  16. Why Doesn't Glue Get Hard In The Plastic Bottle?
Elements and Compounds:
  1. Hydrogen - The Simplest Element
  2. Hydrogen Reaction Experiment Reaps a Surprise
  3. Ice That Burns
  4. Nitrogen Gas and Compounds
  5. Radioactive Radon
  6. Radon, A Rare Element
  7. Table Salt - It's All In The Ions
  8. Turning Oil Into Gas
  9. Uses Of Hydrocarbons
  10. What Are Isotopes?
  11. What Is A Half-life?
  12. What Is Acetone?
  13. What Is Arsenic?
  14. What Is The Periodic Table?
Food:
  1. Was Popeye Wrong?
  2. Why does popcorn pop?
  3. Your Nose Knows!
Medicine:
  1. Take Two And Call Me In The Morning

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