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...

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.