Hard Chemistry Question?Help!!?

Question

When atoms are bonded together covalently what two kinds of structure may result?
And How is a coordiante covalent bond diffrent from an ordinary covalnet bond?

Answer 1

1. Simple molecular or giant covalent structure.

2. A normal covalent bond involves one electron from each of the participating atoms.
In a dative bond, both electrons come from one atom, and none from the other.