Chemistry
Chemistry is the science of matter and the changes it undergoes during chemical reactions. In this section, learn about everyday chemistry, from chlorine beach to helium, and even why chocolate turns gray.
It's Elementary: The Periodic Table Quiz
Alkali Metals: Elements in the First Column of the Periodic Table
Cadmium: The Highly Toxic Metal That Powers the World
Strong Bases: Properties, Applications and Examples
Comparing Strong Acids and Weak Acids
10 Things You Should Never Mix With Alcohol
Delta-8 vs. Delta-9: Comparing Types of THC
What Color Is the Hottest Flame?
Why Do Bubbles Pop?
Learn More / Page 3
If you've ever had a half-frozen beer explode on you, you know that yes, alcohol freezes — but not all types freeze at the same rate. We'll let you in on the secrets to frozen alcoholic delights.
First there was Volvo. Then came IKEA. Well get ready for the next major Swedish export: snus, a smokeless tobacco product, similar to dip or chew.
Mass spectrometry enables the major league to sniff out athletes guilty of doping. It can also help us locate oil or design a killer perfume. Who says chemistry isn't cool?
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More than fodder for melt-in-your-hand YouTube videos, gallium is a key component in LED lights and the powerful microchips in your smartphone.
By Dave Roos
Scientists at the Lawrence Berkeley National Laboratory just made history with einsteinium. They held a sample of the short-lived element long enough to measure some of its chemical properties.
By Dave Roos
From soap to pharmaceutical products, glycerine has many applications.
Adrenochrome has been linked to schizophrenia and the LSD counterculture movement. Now QAnon conspiracy theorists say it's part of a child sex-trafficking cult. So what's the truth behind this chemical compound?
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Hand warmers work through simple chemistry. A massively sped-up version of oxidation (the chemical reaction that makes rust) is to thank.
It's an odorless gas that's present in a variety of home products, cosmetics, car exhaust and even humans. But is it bad for us?
Bismuth is a naturally occurring element with many applications in our daily lives, but even more than that, it looks amazing when it cools!
Denatured alcohol is useful for lots of things, but drinking definitely isn't one of them.
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Diatomic elements are molecules composed of only two atoms, every time, always. There are only seven of them on the entire periodic table.
Electrons are attracted to some atoms more than others. If two atoms are of equal strength, the electrons will be equally shared. If one atom is stronger, the electrons will be pulled in that atom's direction.
The two different types of alcohol are commonly used in hand sanitizer today. But does one work better than the other?
Don't know your fool's gold from the real deal? We'll tell you how to tell what's pyrite (aka fool's gold) and the good ol' 24 karat stuff you want.
By Mark Mancini
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Tungsten's hardness and heat resistance make it a must for products like rocket engine nozzles, armor-piercing bullets and even the humble light bulb filament. In fact, pure tungsten boils at 10,030 F, the same as the photosphere of the sun.
By Dave Roos
You might wonder what phosphates do, but they are so intrinsic to our daily lives that the question really is: What don't phosphates do?
You don't need to be a fan of chemistry to appreciate isotopes. They affect geology and medicine, too.
By Mark Mancini
Long-banned in the U.S., except for religious purposes, peyote is starting to be decriminalized in some cities. But is that a good thing for this endangered plant?
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Making chemical compounds is a lot like dating. Some ions are naturally compatible; others hook up out of desperation.
Award-winning poet and fiction writer Mary Soon Lee has found a charming way to combine science and poetry in a refreshing new take on the periodic table of elements.
By Carrie Tatro
It's a force of habit to shake spray canisters, but when it comes to canned air, that inclination could cause frostbite.
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Borax, a popular addition to laundry detergents and slime recipes, is a natural ingredient that has been getting flack for possibly being harmful to children. But is this true?
By Alia Hoyt
Developed in Israel, this foul-smelling liquid has been used on Palestinian and Israeli protesters … and it's showing up in the United States.
By Sarah Gleim