How do you recover gold that’s been dissolved in acid? How do we know the half-life of uranium? We take on your burning chemistry questions.

Learn more about CuriosityStream at https://curiositystream.com/reactions (CODE: reactions) Cows burp up a lot of methane thanks to the chemistry of their digestion. And since methane is a greenhouse gas, our beef and dairy have huge climate change consequences. This week on Reactions, we cover the gassy science of cow guts.

There’s a sweet smell in the air after it rains, whether it’s a spring shower or a summer storm. This week on Reactions, we explain the chemistry of petrichor, the smell of rain.

These black preserved eggs don’t look like food, but in this episode we’ll show how chemistry turns century eggs into a Chinese comfort food.

We all love detective TV shows, like CSI Miami and Magnum P.I. In this episode, we’ll show what really happens in forensics science lab.

From chocolate powder mix to the milk, check out these science-inspired life hacks will help improve your cold weather cup of hot cocoa.

Reactions is taking science to the skies to see what happens in the chemistry behind chemtrails, or more accurately, airplane contrails.

In this video, we look at the chemistry of gallium, the science behind the holes in the periodic table, and the history of how the elements fell into place.

From the sizzle of the fuse to the boom and burst of colors ––a new American Chemical Society (ACS) video brings you all of the exciting sights and sounds of Fourth of July fireworks. The Chemistry of Fireworks, part of the ACS Holiday Video Series, illustrates in brilliant high-definition detail how the familiar rockets and other neat products that light up the night sky all represent chemistry in action. The video, released today, features a demonstration by fireworks expert John A....

Watch as Reactions uses some acid know-how to tell a chemistry detective story and sort real gold from the imposters.

Reactions tackles the keto diet fad that never dies—The science that goes on with cutting out carbohydrates.

Bakers on TV are always talking about gluten, like it’s some kind of monster hiding in your bread. So is it gluten good, or bad for you?

Theo Gray is 2011 ACS Grady Stack Award winner and in this video, his real DIY masterpiece is the world's first "periodic table table."

Cilantro is one of the most polarizing herbs the planet. Consider it the Benedict Cumberbatch of taco toppings. But what is it about this little plant that stokes such intense vitriol from some people, while the rest of us can't get enough? The answer's in the chemistry folks!

Whether or not you have anxiety, you’ve probably heard of Xanax. But what’s in this popular and widely prescribed drug, and how does it work?

What do you do when you have a bad cough? If you reach for the yummy, cherry-flavored cough medicine, you're not alone. Every year, people spend billions of dollars on this stuff. But does cough medicine actually work? In this episode, we explain the chemistry behind cough medicine, and dig into the evidence to find out which remedies actually work.

We're taking a closer look at hand sanitizers, what this goo is made of, and just how effective it really is against viruses and bacteria.

In this episode, we visited McFadden Art Glass in Baltimore, Maryland, to learn about the chemistry of this ancient material.

Toxicology expert Raychelle Burks explains how “detox” cleanses your body of harmful toxins.

This Halloween, we love horror flicks, so we’re giving you a chemical rundown of the most crucial movie-making element of all: fake blood.

For the 30th anniversary of National Chemistry Week, scientists can use radiometric dating on rocks, and figure out how old is Mother Earth.

For Breast Cancer Awareness Month, Reactions describes what’s changed about treatment options, and what patients can expect in the future

Eggs are edible and incredible, so we've got three kitchen egg demos that will bounce and colorize you into total chemical bewilderment!