Exam 2: Polar Covalent Bonds;acids and Bases

Exhibit 2-1 Give the corresponding letter of the term that best matches the given definition. -_____ A bond between two atoms differing in electronegativity by > 2.

Draw the resonance forms of methyl acetate anion formed during the protonation of methyl acetate in the presence of sulfuric acid.​

Exhibit 2-1 Give the corresponding letter of the term that best matches the given definition. -_____ A compound that can accept a proton.

Which of the following substances would be expected to have the largest pK_a?

Circle all the Lewis bases in the group of compounds below.

Exhibit 2-1 Give the corresponding letter of the term that best matches the given definition. -_____ A term used to describe a "water fearing" species.

What are the products of the following reaction?​

Exhibit 2-1 Give the corresponding letter of the term that best matches the given definition. -_____ A term used to describe a "water loving" species.

Exhibit 2-4 Use the convention and the crossed arrow to show the direction of the expected polarity of the indicated bonds in the following compounds. -Refer to Exhibit 2-4.The C−O bond in furan,

Based on electronegativity values,in which of the following is the bond,represented by -,the most polar?

Exhibit 2-3 Phenylalanine is an amino acid that is essential to human nutrition.The representation below shows the structure of phenylalanine at physiological pH.Consider this structure to answer the following question(s). -Refer to Exhibit 2-3.The oxygen atom labeled A.has ______ non-bonding electrons.

Exhibit 2-9 Indole is pleasant smelling in highly dilute solutions and has been used in perfumery.Use the structure of indole,below,to answer the following question(s). -Refer to Exhibit 2-9.Indole can function as a Brønsted-Lowry acid in the presence of strong bases.Formulate a reaction,showing electron flow with arrows,that demonstrates this reactivity of indole.

Exhibit 2-1 Give the corresponding letter of the term that best matches the given definition. -_____ Any species that accepts electrons.

Draw two resonance structures for the species below. ​

In which series are the elements listed in order of increasing electronegativity?

Exhibit 2-2 Calculate the formal charges on the indicated atoms in each compound below. -Refer to Exhibit 2-2.The formal charge on oxygen (D) is ______.

An acid with a low pK_a:

Exhibit 2-8 Consider the reaction below to answer the following question(s). -Refer to Exhibit 2-8.Label the acid and the base in the reaction.

Exhibit 2-8 Consider the reaction below to answer the following question(s). -Refer to Exhibit 2-8.Using the curved arrow formalism,show the flow of electrons for this reaction.

How many resonance forms can be drawn for the NO₃^- ion?