27. A ligand is any. forming a coordinate bond to a metal cation. a) Lewis acid molecule c) Organic c) b) Lewis base species d) any negative ion

3. Which of the following statements regarding ligands is correct? * O a) All ligands are Lewis bases O b) Positive ions make good ligands. c) The atom bonding to the metal is positively polarized O d) Only one atom of the ligand can bond to the metal. e) All ligands are negative ions.

give an example of tetradentate ligand.

Which of the following best describes a coordinate covalent bond? 1) A single valence electron from the metal and a single valence electron from the ligand are shared. 2) Two valence electrons from the ligand are shared with the metal resulting in a net charge. 3) Two valence electrons from the metal are shared with the ligand. 4) Two valence electrons from the metal are shared with the ligand resulting in a net charge. 5) A single valence electron from the metal and a single valence electron from the ligand are shared resulting in a net charge. 6) Two valence electrons from the ligand are shared with the metal.