solutions high school chemistry

Due to strong attraction between the particles, high temperatures are required to melt or boil them Due to low attraction between the particles, they melt and boil at low temperatures Solubility They are usually soluble in water, but insoluble in organic solvents They are usu..

Halogens have high electron affinity values and therefore they have strong tendency to take up the electro..

Ionic solids are hard and brittle. Ionic solids dissolve in polar solvents like water "The ions of the ionic solids are pulled out of their lattice sites by the dipole movement of the polar solvent and dispersed into solvent form in the solution. Ionic solids have high meltin..

. In sewage disposal, the colloidal particles are removed by discharging them at the electrodes. Sewage water is passed through a tunnel fitted with metallic electrodes, which are maintained at high potential difference. The particles move to the oppositely charged electrodes and coagulat..

>In the addition of HCN, NaHSO 3 , RMgX etc to carbonyl compounds the groups on the carbonyl compound that increases the positive charge on the carbonyl atom (i.e., electronegative group) will increase its reactivity towards the addition and vice versa. The order of reactivity is Aromatic aldehydes..

Highly Magnified Yeast Cells The dilute solution obtained as above is taken in big fermentation tanks and some yeast is added (5% by volume). The temperature is maintained at 330K and the mixture is allowed to stand for a few days. Fermentation sets in and the enzyme (organ..

Both, lithium and sodium decompose cold water vigorously liberating hydrogen. Sodium reacts with water more vigorously than lithium. The hydroxides of lithium and sodium are strong alkalies. They are highly soluble in water and their aqueous solutions contain hydroxyl ions:..

. Hydrogen is dangerous to transport, as it is highly combustible. So it is converted to ammonia, liquefied, transported and then catalytically treated to obtain hydrogen. 8) Many ammonium salts are used in medicines. Inhaling the fumes produced by rubbing ammonium carbonate in the hands ..

In the physical sense, y gives the amplitude of the wave associated with the electron. It is known that in case of light waves, the square of the amplitude of the wave at a point is proportional to the intensity of light. Extending the same concept to electron wave motion, the square of the wave fu..

Physical Significance of Wave Function - In the physical sense, y gives the amplitude of the wave associated with the electron. It is known that in case of light waves, the square of the amplitude of the wave at a point is proportional to the intensity of light. Extending the same concept to electr..