Dative covalent bonds

Question 1

a dative covalent bond is formed when

Answer 1

an empty orbital of one atom overlaps with an orbital containing a non-bonding pair (lone pair) of electrons of another atom

Question 2

name three examples of compounds with a dative covalent bond:

Answer 2

hydroxonium ion H3O+
ammonium ion NH4+
aluminium chloride Al2Cl6

Question 3

dative covalent bonds are represented by

Answer 3

an arrow starting from the atom providing the pair of electrons going towards the atom with the empty orbital