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Choose the correct line structure for the formula HOOCCH2CH(NH2)COOH.

The optical rotation of (R)-carvone is -61 o .  What would be the optical rotation of a racemic mixture of carvone, 50% of (R)-carvone and (S)-carvone ?

Consider the reaction coordinate diagram shown. Which step has the lowest rate constant in the forward direction (in other words, which step is the slowest)?

Choose all molecules below that are achiral.  

Which orbitals are used to form the sigma bond between carbons 1 and 2 below.

Choose the most correct resonance form for the following structure and arrows.  

Which orbitals are used to form the sigma bond between carbons 1 and 2 below.

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

Choose the best product(s) for the reaction below.

Choose the best product(s) for the reaction below.