Apeptide bond question
a. is a covalent bond between the functional r groups of adjacent amino acids.
b. is a covalent bond between the nh group of one polypeptide and the co group of an adjacent polypeptide that holds together multimeric proteins.
c. is a covalent bond between the carboxyl carbon of one amino acid and the amino nitrogen of a second amino acid.
d. is a covalent bond between adjacent glucose molecules in a peptide. a noncovalent bond that dictates the tertiary structure of a protein.

Which is a characteristic of mixtures?

The atomic radius of sodium is 186 pm and of chlorine is 100 pm. the ionic radius for na+ is 102 pm and for cl– is 181 pm. in going from na to cl in period 3, why does the atomic radius decrease while the ionic radius increases? a. the inner electrons in the sodium cation shield its valence electrons more effectively than the inner electrons in the chloride anion do. b. the inner electrons shield the valence electrons more effectively in the chlorine atom than in the chloride anion. c. the outermost electrons in chloride experience a smaller effective nuclear charge than those in the sodium cation do. d. the outermost electrons in chloride experience a larger effective nuclear charge than those in the sodium cation do. e. monatomic ions are bigger than the atoms from which they are formed.

If 3 moles of a compound use 24 j of energy in a reaction, what is the a hreaction in j/mol?