Chemical reactions are the foundation of life (and explosions). This category encompasses all things related to chemical reactions, from basic concepts like oxidation states and molar conductivity, to practical applications like hydration energy and oxidizing agents. We see a lot of interest in electrical reactions, represented by popular searches for "electrolyte" and "electrode potential." Additionally, the search for "choose energy" suggests individuals are interested in finding energy solutions that are environmentally friendly or cost-effective. So whether you're a scientist trying to understand the intricacies of chemical reactions or just looking for some DIY experiments to blow up your backyard, this category has got you covered. Just maybe avoid any trends related to "coronavac" - we're not sure what that's about.