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Chemistry Facts

It's Crying Time Again

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

Onions

Why Does Cement Set?

Concrete has been known for literally thousands of years. It is a testament to the enduring strength of this material that concrete structures from those long-ago times are still standing strong ... Continue reading

Image of microstucture predicted from a NIST-developed model of cement hydration.

What Is Acetone?

Acetone is a manufactured chemical that is also found naturally in the environment. It is a colorless liquid with a distinct smell and taste. It evaporates easily, is flammable, and dissolves in ... Continue reading

Catalysts

Chemical reactions are interactions between atoms and molecules that result in a change in their relative arrangements and interconnections. The reaction affects only individual atoms and molecules, ... Continue reading