Which of the following is a tenet of valence bond theory?

A) Electrons must not be shared.
B) Orbitals must overlap.
C) Orbitals must not overlap.
D) Electrons must remain localized.

What is the shape of a p orbital?

A) Oblong
B) Doughnut shaped
C) Dumbbell
D) Spherical

The nucleotide sequence CCCAAAGAA codes for what amino acids?

A) Proline-lysine-glutamate
B) Proline-lysine-glutamine
C) Arginine-lysine-glutamate
D) Glycine-lysine-glutamate

What would be a complementary strand of DNA for C-G-G-T-C-A?

A) C-G-G-A-G-T
B) G-C-C-A-G-T
C) G-C-C-T-G-A
D) C-G-G-A-C-T

What difference in molecular structure makes cocaine more polar than crack cocaine?

A) Cocaine is the ionic form, crack the non-ionic form, of the same drug.
B) Cocaine is the non-ionic form, crack the ionic form, of the same drug.
C) Cocaine has an added methyl group that crack does not.
D) Crack has an added methyl group that cocaine does not.

Typically, explosions depend on oxygen from the air as the oxygen source.

What is a complimentary DNA strand to T-G-C-C-A-T?

How many carbon atoms should be in the molecule 2-pentyne?

A) 2
B) 3
C) 4
D) 5