McMurry Chapter 2: Polar Bonds; Acids and Bases Certification Review Exam Questions And Answers Verified Solutions.
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Module
MCMURRY
Institution
MCMURRY
Polar covalent bond - correct answer Unsymmetrical electron distribution in a covalent bond.
Are directional (due to set bond angles).
Polarity - correct answer Implies separation of charge.
Dipole moment - correct ans...
Polar covalent bond - correct answer Unsymmetrical electron distribution in a
covalent bond.
Are directional (due to set bond angles).
Polarity - correct answer Implies separation of charge.
Dipole moment - correct answer Sum of all individual bond polarities.A molecule
with polar bonds may have 0 dipole moment; polarities combine
just like vectors.
Electronegativity - correct answer An atom's ability to attract electrons. Fluorine is
most electronegative element in Periodic Table in arbitrary system
of electronegativity. Decreases from right to left (across a row) of the Periodic Table. Decreases from top
to bottom (down a group) of the Periodic Table.
Inductive effects - correct answer Ability of an atom to donate/share electrons
based on the electronegativity of nearby atoms.
Formal charges - correct answer "Electron book-keeping". Formal charge = (# of
valence e-) - (1/2 of bonding e-) - (# of non-bonding e-).
Resonance structures - correct answer Differ only in the placement of valence
electrons. NO ATOMS SHIFT POSITION! A double headed arrow is used to indicate resonance structures.
True structure is a superposition of all resonance structures on each other; sometimes called the
resonance hybrid.
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