Distinguish between molecules and ions?
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How does the strength of the attraction between water molecules and sodium and chloride ions compare with the strength of the attraction between the sodium ions and chloride ions?
Which Criteria used to distinguish between true solution and colloids as no residue is left on filter paper on filtration?
In true solution the molecules of the solute get equally distributed throughout the solvent in the atomic level i.e. at the distance of diameter of an atom. While in colloides the molecules are not mixed in such state. So, using this as a principal to distinguish between colloide & solution. We can centrifuge the two mixtures to distinguish the colooide & solution.
In water, which is a polar molecule, ions care surounded by water molecules depending on the charge of the ion. Positive ions form eletrostatic interactions with the oxygen in water and negative ions, with the hydrogens. Polar molecules are easily dissolved in water because they form hydrogen bonds, sort of the same principle behind the interactions that happen between ions and water molecules.
the main difference between an ions and molecules is that an ion contain the positive "cation" as well as negatively "anions" charge.The main reason is that the ions are the compounds composed of metals and non metals,so the intermix of the outer shell of particular atom can create the different charges.Where as in molecules,they are nuetral.
Assuming you're talking about a solution in water, the answer is yes. However, don't think that each ion is always surrounded by a fixed number of water molecules in this case. In a liquid solution, the ions and water molecules are all in constant motion. One thing you can be pretty sure about is that ions of the same electrical charge will tend to keep away from one another, whereas the opposite charged ions attract…