30. What is the IUPAC name of the organic compound that has the formula shown below?
H
H-C-H
H H H H
H-C-C-C-C-C-H
H H H H H
A. 1,1-dimethylbutane
B. 2-methylpentane
C. hexane
D. 4-methylpentane

Substance a is a nonpolar liquid and has only dispersion forces among its constituent particles. substance b is also a nonpolar liquid and has about the same magnitude of dispersion forces among its constituent particles. when substance a and b are combined, they spontaneously mix.