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Chemistry Facts

How Sublime

Show of hands. How many of you can't resist playing with dry ice? Dry ice is carbon dioxide frozen to -109.3 degrees F (-78.5 C). Throw a piece in water and it bubbles and boils. Expose a piece to air ... Continue reading

Sublimation of Comet's Tail

Carbon Dating

As isotopes break down, or decay they give off radiation. Materials that decompose in this way are said to have a 'half-life'. As the quantity of material present decreases, so does the actual rate at ... Continue reading

Scientists date fossils by measuring carbon.

Chemical Burning

Chemical burns are the result of very normal reactions that can occur between the offending material and living tissue components. People generally tend to regard their bodies as things outside of the ... Continue reading

What Is The Periodic Table?

The periodic table of the elements is a representation of all known elements in an orderly array. The periodic law presented by Dmitri Mendeleev in 1869 stated that if the (known) elements are ... Continue reading

More Chemistry 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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