👉 Dissociations are the processes by which atoms or molecules break apart, often due to a chemical reaction. They can occur in different ways depending on the type of reaction and the properties of the substance involved. For example, when two hydrogen atoms combine to form water (H2O), the resulting molecule consists of two hydrogen atoms and one oxygen atom, forming H2O. When two carbon atoms combine to form methane (CH4), the resulting molecule consists of four carbon atoms and one hydrogen