difference between double bonds and single bonds in colavent bonding?

Answer 1

single = 1 pair of electrons shared between two atoms
double = 2 pairs of electrons shared
triple = 3 pairs of electrons shared

Answer 2

when expressing the chemical bonding between two or more elements, you use the rrule of 8's on the electrons. all the outer bonds have to show 8 e-"s except H. When applying the 8 rule to the center element of the bond, it depends on how many covalent e-'s are available, if the center only has 6, then you borrow 2 from a surrounding bond and placing another bar "another pair" between them causing the center ot have a total of 8 e-'s in expression and all the surrounding elements to have 8 e-'s as well. It is called: the Lewis structure. goggle that phrase and look it up on wikipedia to find out more or to get a better understanding of it

Answer 3

In single bonds (also called sigma bonds) the electron density is shared across the two shared electrons. In a double bond (also called pi bonds) the p orbitals of the bond are above each atom and thus shared by overlapping. (Overlapping p orbitals).

THis link has good information
http://dl.clackamas.edu/ch106-02/pibonds.htm

For a clear picture of the overlapping p orbitals go to this one:
http://en.wikipedia.org/wiki/Pi_bond

Answer 4

Single bonds have 1 shared pair of electrons.

Double bonds have 2 shared pairs of electrons.

Triple bonds have 3 shared pairs of electrons.

Triple bonds are MUCH stronger than single bonds, and are also much SHORTER (ie the two atoms are CLOSER together) than single bonds.