The second section presents the views andassumptions of realism in conducting research in social science. The main realistic attacks onlogical positivism approach are presented in the third section and the conclusion is given in thefourth section.
Water is considered 'the' universal solvent because more materials are dissolved by it than by any other solvent but it will not dissolve non-polar substances like oil.
As a result, water is an excellent solvent for other polar molecules, particularly those which have hydrogen bonded to either oxygen or nitrogen atoms. This is because it is possible to have hydrogen bonding between the molecules. Water is also an excellent solvent for both positive and negatively charged ions.