Chemical reactions include fires, explosions, and nuclear reactions.
Chemical reactions consist of two main parts, the reactant(s), and the product(s). The reactant(s) are the substances that participate in chemical reactions. The product(s) are the substances that are created from chemical reaction.
While we might think of space as a vast and silent expanse, that's not necessarily true. Space has plenty of noise, like these dense plasma sounds captured by Voyager 1 as it headed into interstellar space. Space also has musical stylings of Chris Hadfield.
Video contains numerous endothermic and exothermic reactions.