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1. hold the many molecules of i2 together in a crystal of iodine
2. account for the relatively high boiling and freezing points of water
3. account for the attraction of polar molecules
4. this is the strongest intermolecular force
5. this force holds molecules of CH4 together
6. this holds molecules of NCl3 together
Categories:
London Dispersion
Hydrogen Bond
Dipole Dipole

1. Covalent bonds

3. Polar molecules will be attracted to each other by either hydrogen bonding or dipole-dipole interactions. These intermolecular forces are made possible by a large difference in electronegativity values for two atoms bonded to each other. In water, the electronegativity difference between oxygen (3.5) and hydrogen (2.1) is 1.4 (3.5-2.1=1.4).

4. The strongest intermolecular forces are in ion-ion bonds which happen when a metal bonds to another metal.

The next strongest forces are ion-dipole bonds which happen when metals bond to nonmetals.

The third strongest force is a type of dipole-dipole force called hydrogen bonding.

The rest of the dipole-dipole bonds come next.

5. Types of Intermolecular Forces Exist in CH4 Molecules? What Types of Intermolecular Forces Exist in CH4 Molecules? The molecule known as CH4, or methane, is affected by van der Waals forces between individual molecules

6. intramolecular forces are the bonding of atoms that holds a molecules together intermolecular forces hold molecules together in a solid or liquid. The bonds between hydrogen and oxygen hold the water molecule together. The sharing of electron density creates a bond that holds the two atoms together. So called Hydrogen bonding.

Explanation:

  the   balanced   equation   for   reaction of   ca metal   with   o2 to   produce   cao   is as below

2 ca+ o2→ 2 cao2

  explanation

the reaction is   balanced     since the   number of atoms   in reactant side is   equal to   number of atoms   in   product side.   for   example   they   are 2   atom of   ca in   reactant   side   and   2   atoms of ca   in   the product side.

  the   process   is a   meet the   requirement   of   redox   reaction because :     calcium   is   oxidized   from   oxidation state 0   to 2+   while   oxygen   is reduced from   oxidation   state   0   to 2-

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