Multiple Choice
The following ball-and-stick molecular model is a representation of the amino acid alanine (unshaded spheres = H) .Only the connections between atoms are shown;multiple bonds and nonbonded electrons are not indicated. 
-In order to complete an electron-dot structure of alanine,the nitrogen atom needs
A) 1 additional bond and 1 nonbonded pair of electrons.
B) 1 additional bond and 2 nonbonded pairs of electrons.
C) 1 nonbonded pair of electrons.
D) 2 nonbonded pairs of electrons.
Correct Answer:
Verified
Correct Answer:
Verified
Q150: The number of sp<sup>2</sup> hybrid orbitals on
Q151: Shown below is a model of SiH<sub>4</sub>
Q152: A molecular model of SO<sub>4</sub><sup>2-</sup> is shown
Q153: What is the geometry around the central
Q154: What is geometry around the nitrogen atom?<br>A)bent<br>B)tetrahedral<br>C)trigonal
Q156: Which of the following molecules has polar
Q157: Which has the smallest dipole-dipole forces?<br>A)CH<sub>3</sub>Cl<br>B)KCN<br>C)I<sub>2</sub><br>D)H<sub>2</sub>S
Q158: What is the bond angle in the
Q159: The SO<sub>3</sub> molecule can be described as
Q160: The following ball-and-stick molecular model is a