Water is a chemical substance with the formula H2O. Water is made up of molecules. A water molecule is made up of two ...

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 ...

Here is the formula for hydrated copper(II) sulfate. Notice that water of crystallisation is separated from the main formula by a dot.

This creates a tighter arrangement of molecules at the surface and the round shape of a drop of water. Alcohol has one O–H bond which is polar, but a large portion of the molecule is made up of C–H ...

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 ...