Nomenclature
Name for AlF3
Aluminum Fluoride
Phosphorus trichloride has how many valence electrons?
26 valence electrons
Is SeF2 polar?
Yes
Why are London Dispersion Forces so weak?
Because they only have temporary dipoles
What does "Ma" in Mr. Ma's name mean in Chinese?
Horse
Chemical formula for trinitrogen heptachloride
N3Cl7
For POCl3, which atom goes in the middle
Phosphorus
Which direction does a dipole point?
To the more electronegative side; to where the electron “wants” to go
What IMF(s) are involved with boron trifluoride?
LDF
What does "Torres" mean in Spanish?
Towers
Name of I4O9
Tetraiodine nonoxide
What's the molecular geometry of NH3?
Trigonal Pyramidal
Why is GeCl4 not polar? (even though Cl is more EN than Ge?)
Because of symmetry
Which has the highest melting point: Calcium Fluoride, Pure Silver, or Sugar?
Calcium Fluoride (1,418°C), Silver (961.8°C), Sugar (160°C)
What number was our old classroom at the beginning of the year?
4215
Name of Fe2(SO4)3
Iron (III) Sulfate
What does the "line" between two atoms represent in a Lewis structure?
A bond, aka two electrons, two shared valence electrons
What’s the difference between a bond dipole and a molecule dipole?
Bond dipole = electronegativity difference between two atoms determines where the electrons spend more time within that bond only; molecular dipole is the sum of all bond dipoles
What IMF(s) are involved with NH3?
LDF, DDF, HBF
How many tables do we have in our room? (the black tables on the edge of the room don't count)
17
Why do covalent naming include prefixes while ionic naming doesn't?
Because ionic compounds have a ratio of cation to anion that is net neutral; you can infer the charge of ions based on the PT (not same w covalent)
Name 3 molecular geometries that are symmetrical
Any 3: Linear, Trigonal Planar, Tetrahedral, Trigonal Bipyramidal, Octahedral
Name a molecule that is symmetrical but also polar
CH3F
HCl
Why are HBFs stronger than other DDFs?
HBF involves a hydrogen atom bonded to a highly EN atom like O, N, or F, creating a significantly larger partial positive charge on the hydrogen which results in a much stronger electrostatic attraction with the lone pair of electrons on the EN atom in a nearby molecule
How many students do we have in this class?
P5: 32; P6: 31