Thread: What is the difference between coordinate covalent bonds and other covalent bonds?

Studying for a final and I can't find an answer that makes sense to me. Any help please?
Also,
How do designate a coordinate covalent bond when writing a structural formula?

if the bond between two element involves one or more electrons from each one, then it is a normal covalent bond. In coordinate bonds, one element donates an electron pair to the other one.

The coordinate bond is designated by a arrow from the donating atom eg H3N-->Cu shows the nitrogen in ammonia donating a lone pair to copper as in the complex [Cu(NH3)4]2+