TEFA Competitive Entrance Exams

Aug. 2, 2023, 3:38 p.m.
NKENFACK BLONDEL
Hello madam,

correction: intramolecular forces are attractive forces that holds atoms together witin a molecule or a substance. The are stronger and are usually called chemical bonds.

intermolecular are weaker attractive forces that exist between molecules.

there are not clear-cut guidlines for which intramolecular forces are strongest because they vary widely interms of stength.

1)ionic bonds= attraction between cations and anions e.g Na-cl

2)covalend bond= between shared pairs of electrons and the nuclie e.g F-H

3)metallic bonds= ATTRACTIVE BETWEEN SEA OF DELOCALISED ELECTRONS e.g Fe-Fe

intermolecular can vary alot too, but there are some more recongnized patterns

1)ion dipole-dipole

2)hydrogen bonds

3)vandawall forces

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Aug. 2, 2023, 11:25 a.m.
NKENFACK BLONDEL
correction: les verbe au pluriel du passé simple ce conjugue avec l'accent circonflex cette errur ne doir pas etre negliger

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April 16, 2023, 6:25 p.m.
Konno meli
wewe

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