Problem 2.3 For each compound below, identify the most reactive pair of electrons (either a bond or a lone pair) and specify the corresponding type of frontier orbital (namely n, t or ơ). NH2

Rizatriptan (trade name Maxalt) is a prescription drug used for the treatment of migraines. (a) How many aromatic rings does rizatriptan contain? (b) Determine the hybridization of each N atom. (c) In what type of orbital does the lone pair on each N reside? (d) Draw all the resonance structures for rizatriptan that contain only neutral atoms. (e) Draw all reasonableresonance structures for the ve-membered ring that contains three N atoms.

Problem 4.73 Identify bonds polar non polar

I need help with this practice problem: Draw the structure for cis-1-ethyl-2-(1-methylethyl)cyclohexane. Draw both chair conformations of this molecule and place them in the correct box based on their stability.

Below is the SN2 reaction between iodocyclohexane and cyanide (CN–). Draw the missing curved arrow notation in the first box to reflect electron movements. In both boxes, add lone pairs of electrons and nonzero formal charges.

Problem (#2.) For each ion below, draw all reasonable resonance structures (linked by resonance arrows “↔”). Include curved arrows that indicate the movement of electrons between each resonance structure. Assign non-zero formal charges to each atom for each resonance structure. (a.) NO3–  (nitrate) (b.) CH3COO– (acetate) (c.) N3– (azide) (d.) NCO– (isocyanate) Problem (#3.) For each ion in question 2, draw a resonance hybrid, assigning non-zero formal and/or partial charges (δ+, δ–) as needed. Problem (#4.) For each skeletal structure below, satisfy the valences (or octets) of all of the atoms by filling in double and triple bonds as well as unshared electron pairs. Assign non-zero formal charges and show the overall charge if the structure is an ion. See photo attached for Problem number 4.   Problem (#5.) For each structure in question 4, draw a resonance hybrid (if it has one) and assign non-zero formal and/or partial charges as needed.

statement a: Three sp2 hybridized orbital shells are determined if a fully hbridized carbon atom has a double bond. statement b: The remaining p-orbit al signifies that it is ready for bonding. a. if the first statement is true and the second is false b. if the first statemetne is false and second is true c. if both true d. if both false

Help! a.) Draw all the important resonance contributors for the structure shown below. Use curved arrows to show the movement of electrons between these contributors.   b.) Draw the hybrid resonance hybrid structure.

(a) Add curved arrows to show how the starting material A is converted to the product B. (b) Draw all reasonable resonance structures for B. (c) Draw the resonance hybrid for B.

Among the most common over-the-counter drugs you might find in a medicine cabinet are mild pain relievers such ibuprofen (Advil, Motrin), naproxen (Aleve), and acetaminophen (Tylenol). (a) How many sp3-hybridized carbons does each molecule have? (b) How many sp2-hybridized carbons does each molecule have? (c) Can you spot any similarities in their structures?