VSEPR
valence bond/molecular orbital theory
IMFs/polarity
stoichiometry/ chemical reactions
misc.
100
Molecular geometry of CO2?
linear
100
what's the hybridization of the carbon in HCN?
sp
100
what intermolecular force is found in all molecules?
london dipsersion force
100
The mass percent of C in acetone (C3H6O)
62%
100
what is the formula for sodium phosphate
Na3PO4
200
An example of a tetrahedral electron geometry
(any molecule with 4 electron groups)
200
is B2 paramagnetic or diamagnetic? (draw orbital diagram)
paramagnetic
200
what are the 3 elements that can do hydrogen bonding?
F, O, and N
200
balance the equation LiClO -> Li2 + Cl + O4
4LiClO -> 2Li2 + 4Cl + O4
200
true or false?
intermolecular forces are within molecules, while bonds are between molecules
false!
300
which of the following does NOT have t-shaped molecular geometry?
BrF3, ClF3, NH3
NH3
300
what is the hybridization of xenon dichloride?
sp3d
300
what forces are present in IF5?
dispersion and dipole-dipole
300
how many grams of aluminum will i need in order to make 3.2 grams of hydrogen gas?
2Al + 6HCl -> 2AlCl3 + 3H2
28.55 grams aluminum
300
why are ion-dipole forces stronger than hydrogen bonding?
(anything about electronegativity)
400
The molecular and electron geometry of XeCl4
square planar (for molecular) and octahedral (for electron)
400
true or false?
the pi component of a double bond is stronger than the sigma component
false!
400
true or false?
CH2F2, seesaw shaped molecules, and CH3COOH are all polar molecules
true!
400
when 1.41 grams of ammonia react in the following equation, how many grams of nitrogen gas are produced?
4NH3 + 3O2 -> 2N2 + 6H2O
1.16 grams
400
in a triple bond, how many sigma and pi bonds are there?
1 sigma and 2 pi
500
rank the following in order of increasing (smallest to biggest) bond angle
tetrahedral, octahedral, bent
octahedral < tetrahedral < bent
500
between F2 and F2-, which would have a shorter bond? (hint: find bond orders)
F2
500
briefly explain why water (H2O) would have a higher boiling point than methane (CH4)
water has stronger intermolecular forces, boiling point increases with increasing forces, etc.
500
butane (C4H10) reacts with oxygen gas (O2) in a combustion reaction to form carbon dioxide and water vapor. what is the sum of the coefficients of the balanced equation?
33
2C4H10 + 13O2 -> 8CO2 + 10H2O
500
categorize each of the following as either a physical property or chemical change:
boiling point of ethanol, combustion of octane, thickness of maple syrup, rust forming on a nail
physical: boiling point, thickness (aka viscosity)
chemical: combustion, rust forming