Campbell Essential Biology with Physiology (5th Edition)
5th Edition
ISBN: 9780321967671
Author: Eric J. Simon, Jean L. Dickey, Jane B. Reece, Kelly A. Hogan
Publisher: PEARSON
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Chapter 2, Problem 13PS
Summary Introduction
To explain: The type of bond formed between fluorine atom and potassium atom.
Introduction: The bond formation between atoms depends on their structure. An atom consists of protons, neutrons, and electrons. The protons and neutrons present in the nucleus and electrons revolve in different electronic shells. The electron present in the outermost shell is called valence electrons. When two atoms are so unequal in their attraction for valence electrons (outermost electrons), the more electronegative atom strips an electron completely and forms ions.
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The “octet rule” in chemistry helps predict the types of bonds thatatoms will form. In general, an atom will be most stable if it fills itsouter shell of 8 electrons. Atoms with fewer than 4 valence electronstend to donate electrons and those with more than 4 valence electronstend to accept additional electrons; those with exactly 4 can do both.Using this rule, determine what category each of the followingelements falls into: N, S, C, P, O, H, Ca, Fe, and Mg. (You will needto work out the valence of the atoms.)
:0-H-1--:N-H
Hydrogen Bond
Which statement best helps explain the formation of the hydrogen bond represented in the figure?
A
The oxygen has a partial positive charge, and the nitrogen has a partial negative charge.
(B)
The nitrogen has a partial negative charge, and the hydrogen attached to the oxygen has a partial positive charge.
Compound P was discovered by a scientist. Compound P is a dipeptide,
optically active and has the molecular formula C„H14N2O3. Compound P is
formed when compound Q and compound R joined together by condensation
reaction. While, monomers S and T are formed by modifying the compounds
Q and R. Polymer U is formed by the condensation reaction of monomers S
and T.
Draw the possible structural formulae of compounds P, Q, R, S, T and U.
Label the peptide bond(s) for compound P.
Draw the possible structural formulae for repeating unit of polymer U.
Please state the number of functional groups present in compound P.
Chapter 2 Solutions
Campbell Essential Biology with Physiology (5th Edition)
Ch. 2 - An atom can be changed into an ion by adding or...Ch. 2 - If you change the number of _________, the atom...Ch. 2 - A nitrogen atom has 7 protons; and the most common...Ch. 2 - Why are radioactive isotopes useful as tracers in...Ch. 2 - What is chemically nonsensical about this...Ch. 2 - Why is it unlikely that two neighboring water...Ch. 2 - Which of the following is not a chemical reaction?...Ch. 2 - Some people in your study group say they dont...Ch. 2 - Explain how the unique properties of water result...Ch. 2 - Explain why it is unlikely that life could exist...
Ch. 2 - A can of cola consists mostly of sugar dissolved...Ch. 2 - Animals obtain energy through a series of chemical...Ch. 2 - Prob. 13PSCh. 2 - Interpreting Data As discussed in the text and...Ch. 2 - Critically evaluate this statement: Its paranoid...Ch. 2 - A major source of the CO2 that causes ocean...
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