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Ralph1952
2 years ago

Salt consists of ions (i.e. charged particles), for example in the sodium chloride of Na+ and Cl ions, which adhere to one another by attraction and form a crystal lattice. Water H2O with its polar molecules (dipoles) is able to attract the ions and dissolves them from the lattice structure, i.e. the ions are deposited by their charge to the water molecules and thus dissolve.

Water molecules are polar with a positive hydrogen side and a negative oxygen side due to the different electronegativity of hydrogen and oxygen. Water jacket: In the case of negative ions, the water molecules are deposited with the positive side and with positive ions with the negative side.

https://www.chemiezauber.de/content/basic-2-kl-8/salt-1/ Properties-von-salzen/488-der-loeseprozess-eins-salt-in-wasser.html

Ralph1952
1 year ago
Reply to  Ralph1952

More detailed: https://www.chemiezauber.de/content/basic-2-kl-8/salt-1/ Properties-von-salzen/488-der-loeseprozess-eins-salt-in-wasser.html#this previous knowledge-yet-once-collected

Siebenschlae315
2 years ago

This problem asks us to find out which cation is most attracted by the negative water basin. Uh, would there be three different options? Would it be the sodium? Would it be magnesium or would it be aluminum if you remember the law of combs, uh, the attraction is based on both the charge and on how close they lie in the period system, uh, so sodium will have one plus magnesium has a two plus and aluminum has a three plus. So aluminum will obviously have gone out to the biggest load. The second thing is how close it is to the eye of the Periodic Table. Apparently, aluminum is much closer, two oxygens than either sodium or magnesium. The answer here is that aluminium would have the greatest attraction