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 oxygen molecule come apart, the atoms rearrange and then re-bond to ...

This particle diagram represents water or, to use its chemical formula, H₂O which is a compound of the elements hydrogen and oxygen. In one molecule of water, there are two hydrogen atoms and ...

The dot and cross diagram shows that a water molecule is made up of one oxygen atom joined to two hydrogen atoms, so the formula of water is H 2 O. A nitrogen molecule is made up of two nitrogen ...