What is the predicted approximate bond angle indicated by an arrow below?

Choose ALL compounds below that will form hydrogen bonds between molecules of themselves.

Choose the correct line structure for CH3CH(OH)CH2COH(CH3)2.

Choose the correct product that follows from the mechanism arrows shown below.

What is the formal charge on N in the structure below?  

Predict the major product(s) of the following reaction. 

Which of the following structures have the correct bond polarity indicated? Choose all that apply.

Predict the major product(s) of the following reaction. 

What is the formal charge on N in the structure below?  

Which of the following structures have the correct bond polarity indicated? Choose all that apply.