Properties
Ionic & Covalent
VSEPR
Polarity & IMF
Nomenclature
100
Identify each of the following as ionic, metallic, or covalent:
A - metallic
B - Ionic
C- Covalent
100
Ionic or Covalent: PO4
Covalent (NM+NM)
100
Ionic, Metallic, Covalent: Which of the following does VSEPR shapes apply to?
Covalent
100
Which type of IMF is the strongest?
hydrogen bonding
(Examples: HF, NH₃, H₂O)
100
What is the chemical formula for diphosphorus trichloride?
P2Cl3
200
Ionic, Metallic, Covalent: Which of the following is flammable?
Covalent
200
Which covalent bond would be the strongest?
CO2 NO3 O2 OF2
O2
200
How many bonded groups and lone pairs are on the central atom?
2 bonded groups
1 lone pair
200
Is the molecule below polar or nonpolar? AND what type of IMF does it have?
nonpolar (no lone pairs)
IMF: London Dispersion
200
What is the IUPAC name for P3Br5?
triphoshours pentabromide
300
Ionic, Metallic, Covalent: Which of the following will have a large difference in Electronegativity?
Ionic
The larger the difference in EN, the stronger the bond. Allows the electron to be transfered.
300
What type of bond will be formed when Magnesium (Mg) bonds to Chlorine (Cl) and what will the ratio be?
ionic bond
MgCl₂ (1:2 ratio)
300
What do lone pairs do the the bond angle between bonds? How do they affect the molecular shape?
Push the bonds together and make the bond angle smaller as a result of electron repulsion.
300
Does this molecule have a net dipole moment?
no because it is a nonpolar molecule
300
What is the IUPAC name for FeCl₂ ?
Iron (II) Chloride
400
Ionic, Metallic, Covalent: which conducts electricity as a solution?
Ionic
They are the only electrolytes.
400
Draw the lewis dot structure for ZnF2
400
Draw PCl₃ and identify its molecular shape.
Trigonal Pyramidal
400
What type of IMF does the molecule below have?
Dipole-Dipole
400
What is the IUPAC name for Na2SO4?
Sodium Sulfate
500
Which substance will have the highest boiling point?
Na₂O MgO Fe O₂
Na₂O
(farther = stronger)
ionics have VERY high boiling points
500
Is N2 compound ionic, metallic, or covalent? Draw it AND identify the number of sigma and pi bonds.
Covalent
1 sigma bond
2 pi bonds
500
Draw the molecule for CSe₂ and identify its molecular shape.
linear
500
Which type of IMF would cause a substance to have a very low boiling point?
London Dispersion
(weak forces = low BP)
500
What is the IUPAC name for MnCrO₄?
Manganese (II) Chromate