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.
Summary. 1  A water molecule has no overall or ânetâ charge. It is neutral. 2  Because of the way oxygen and hydrogen are bonded together, water has an area of positive charge and an area of negative charge. This makes the water a polar molecule. 3  Because of waterâs polarity, water molecules are attracted to each other.