Given the following bond energies:
C-C 347 kJ/mol
C=C 614 kJ/mol
C-O 358 kJ/mol
C=O 799 kJ/mol
C-H 413 kJ/mol
O-H 463 kJ/mol
O-O 146 kJ/mol
estimate DH for the reaction
H2O2 + CH3OH � H2CO + 2H2O.
-345 kJ
Consider the compound crotonaldehyde, whose skeleton is:
How many nonbonding electrons appear in the Lewis structure of this molecule?
4
Which of the following species is best described by drawing resonance structures?
O3
Choose the electron dot formula that most accurately describes the bonding in CS2. (Hint: Consider formal charges.)
Which of the following molecules are nonlinear?
NO2-, C2H2, N3-, HCN, CO2, H2O2
NO2-, H2O2
The molecular structure of BeF3- is
trigonal planar
The __________ is the change in energy that takes place when separated gaseous ions are packed together to form an ionic solid.
Lattice energy
The hybridization of the carbon atom in the cation CH3+ is:
sp2
Which of the following does not contain at least one pi bond?
C2H6
The hybridization of the B in BH3 is sp3
False
Name the following:
3,5-dimethylheptane
Name the following:
3-methylpentane
Hydrocarbons containing a carbon-carbon triple bond are called
alkynes