Aprotein is a large polypeptide. polypeptides are polymers of amino acids joined together through a special type of bond: the peptide bond. understanding the chemistry and properties of the peptide bond is fundamental to understanding protein structure (and function). first, identify the n- and c-termini of the peptide. then, identify those bonds that comprise the peptide bond for each labeled bond. finally, determine the number of amino acids in the peptide depicted.

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explanation:

you need to take a look at the periodic system in order to sort these elements into pairs that would most likely exhibit similar chemical properties. first, you need to find elements that are found in the same group (groups are vertical in the periodic system), and then to see whether they have the same valence number. if they meet these criteria, they will have similar properties.

the first pair: ne (neon) and kr (krypton), are noble gases found in group 8

the second pair: li (lithium) and k (potassium), found in group 1

the third pair: s (sulfur) and te (tellurium), found in group 6

a saline water is fed to a reverse osmosis unit at flow rate o rotameter connected to reject (retentate) line reads 8 installed in reject and permeate line reads 15.2 milli siemens/cm and 300 micro siemens/com respectively.