It exists naturally as a molecule. Each methane molecule has a central carbon atom joined to and surrounded by four hydrogen atoms. The chemical formula of methane is CH₄. Cows and other farm ...

While you're watching, see if you can spot what is used in the middle of the word equation to show that a reaction has occurred. Chemical reactions happen all around us. When we burn methane in a ...

All the atoms in the products come from the atoms in the reactants. The reactants are on the left side of the equation and the products are on the right. In the reaction, the bonds in the methane and ...