If you're feeling a little rusty on your science trivia, don't worry because this is just the question for you! What is the chemical reaction that causes iron to rust?

Digestion, Decomposition, and Crystallization all have their time to shine, but Oxidation occurs when air and water react with the metal to form rust. Oxidation actually refers to any chemical reaction that involves the moving of electrons, specifically the side giving them away!

Asked by Rachel Bortles · Last updated 5 years ago · 265.5K views · SOURCE