G ) At a pH of 2.02 estimate the % protonation of the carboxy functional group and the % protonation of the amine functional group, respectively, on the amino acid, arginine. Carboxyl Amine a. 100%, 0 % b. 0 %, 100 % c. 0 %, 50% d. 50%, 50% e. 50%, 100%

it forms an anion that has a larger radius. anions have a negative charge and are larger than the original atom.

explanation:

substituting a hydrogen atom with a halogen in a hydrocarbon:

- the single bond remains single. a is wrong.

- the bond with hydrogen is as strong as with a halogen. c is wrong

- a hydrocarbon is saturated if there is no double bond. we do not know that so d is wrong.

- carbon will always have four valence electrons. e is wrong.

by elimination, the correct answer is b. the boiling point of the new compound increases.