natural solutions software

Polar solvent dissolves polar solutes and nonpolar solvents dissolve nonpolar solutes. For e.g., polar solvents like water, liquid ammonia, liquid hydrofluoric acid etc. dissolve polar and ionic compounds. Whereas nonpolar solvents like benzene, carbon disulphide, carbontetrach..

Depending on the nature of pollutant, water is polluted with three kinds of pollutant..

0 - 8 : 2, 6Valency = 8 - Number of valence electrons= 8 - 6= 2 If the outermost shell of an atom is completely filled, its valency = 0. The outermost shells of the noble gases helium, neon, argon, krypton etc. are completely filled. Hence their valency is zero. Such elements are very un-reactive a..

>Increase in charge of the ion (cation or anion). Thus, Li + being small in size polarizes the anion and results in decrease of the positive charge on Li + ion. Therefore, lithium halides are covalent in nature..

. The form of energy, which cannot be recreated, is the amount that goes into increasing disorder. In reality a lot of effort and time is needed by nature to recreate energy once it goes through a spontaneous process. In the above example it is done through photosynthesis, carbonization o..

Colloidal sols are biphasic in nature. It consists of the dispersed phase and the dispersion medium. In the colloidal solution, each particle is contained within its own surface boundary and therefore has a separate existence from the dispersion mediu..

i) Microorganisms present in the soil weaken and decompose the hard seed coat ii) The digestive juices present in the alimentary canal of the fruit eating birds makes the seed coat soft iii) Mechanical abrasions weaken the tough and impermeable seed coat iv) Washing away of inhibitors by rain or ir..

The acidic nature of sulphur dioxide is displayed by the following reactions. Sulphur dioxide turns the colour of wet blue litmus paper to red, methyl orange to pink and pink phenolphthalein colorless. Sulphur dioxide dissolves in water to form sulphurous acid, hence it is called "sulph..

>Restrictions on rate of production Example: A coconut tree cannot bear more than 200 nuts. Restrictions on prerequisites for reproduction Example: Mating is successful within a species / subspecies. Climatic restrictions on existence of life and reproduction Example: Apple cannot be grown in tropi..

Introduction - Chemical reactions mostly take place in solutions. Solution chemistry plays a very significant role in chemistry. All chemical substances are made up of either polar units (called ions) or non-polar units. The activity of these entities is more evident and pronoun..