Need chemistry help with van der Waals forces

/in /by

1 what substance has the strongest (london) dispersion forces

Br2

l2

F2

Cl 2

2 which substance would have the highest melting point based on electronegativity

H2 Se

H2O

H2Te

H2S

3 hydrogen bonds can be found between molecules of which of the following substances

H2

NH3

Hl

CH4

4 which of the following intermolecular forces is responsible for iodine being a solid at room temperature

dipole-dipole forces

ion-dipole forces

dispersion forces

hydrogen bonds

 
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