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.
Water's excellent solvent properties are due to its polarity. The oxygen atom has a partial negative charge while the hydrogen atoms have a partial positive charge. Due to thi â¦ s dipole moment, water can easily solvate many polar substances.