The intermolecular force(s) responsible for the fact that CH4 has ...

[go.lag]

The intermolecular force(s) responsible for the fact that CH4 has the lowest boiling point in the set CH4, SiH4, GeH4, SnH4 is/are ________.
 
  A) hydrogen bonding
  B) dipole-dipole interactions
  C) London dispersion forces
  D) mainly hydrogen bonding but also dipole-dipole interactions
  E) mainly London-dispersion forces but also dipole-dipole interactions

Question 2

In a solution, when the concentrations of a weak acid and its conjugate base are equal, ________.
 
  A) the system is not at equilibrium
  B) the buffering capacity is significantly decreased
  C) the -log of the H+ and the -log of the Ka are equal
  D) All of the above are true.

Question 3

Which group in the periodic table contains only nonmetals?
 
  A) 1A
  B) 6A
  C) 2B
  D) 2A
  E) 8A

[kescobar@64]

Answer to Question 1

C

Answer to Question 2

C

Answer to Question 3

E

[go.lag]

Both answers were spot on, thank you once again

[kescobar@64]

Great! Please up vote