Chemistry: Molecular Nature of Matter and Change, 6th Edition (Silberberg)

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1			Of the three major types of bonding (ionic, covalent, metallic) which ones are based on electrostatic attractions between opposite charges?
			A)	only ionic bonding
			B)	only ionic and covalent bonding
			C)	only ionic and metallic bonding
			D)	ionic, covalent and metallic bonding
			E)	none of the above
2			The Lewis dot symbol for the oxide ion is
			A)	<a onClick="window.open('/olcweb/cgi/pluginpop.cgi?it=gif::::/sites/dl/free/0310402656/37547/Image8.gif','popWin', 'width=NaN,height=NaN,resizable,scrollbars');" href="#"><img valign="absmiddle" height="16" width="16" border="0" src="/olcweb/styles/shared/linkicons/image.gif"> (0.0K)</a>
			B)	<a onClick="window.open('/olcweb/cgi/pluginpop.cgi?it=gif::::/sites/dl/free/0310402656/37547/Image9.gif','popWin', 'width=NaN,height=NaN,resizable,scrollbars');" href="#"><img valign="absmiddle" height="16" width="16" border="0" src="/olcweb/styles/shared/linkicons/image.gif"> (0.0K)</a>
			C)	<a onClick="window.open('/olcweb/cgi/pluginpop.cgi?it=gif::::/sites/dl/free/0310402656/37547/Image10.gif','popWin', 'width=NaN,height=NaN,resizable,scrollbars');" href="#"><img valign="absmiddle" height="16" width="16" border="0" src="/olcweb/styles/shared/linkicons/image.gif"> (0.0K)</a>
			D)	<a onClick="window.open('/olcweb/cgi/pluginpop.cgi?it=gif::::/sites/dl/free/0310402656/37547/Image11.gif','popWin', 'width=NaN,height=NaN,resizable,scrollbars');" href="#"><img valign="absmiddle" height="16" width="16" border="0" src="/olcweb/styles/shared/linkicons/image.gif"> (0.0K)</a>
			E)	<a onClick="window.open('/olcweb/cgi/pluginpop.cgi?it=gif::::/sites/dl/free/0310402656/37547/Image12.gif','popWin', 'width=NaN,height=NaN,resizable,scrollbars');" href="#"><img valign="absmiddle" height="16" width="16" border="0" src="/olcweb/styles/shared/linkicons/image.gif"> (0.0K)</a>
3			Which of the following is the correct formula for magnesium nitride?
			A)	Mg NO3
			B)	Mg(NO3)2
			C)	MgN
			D)	Mg2N3
			E)	Mg3N2
4			The electrostatic force of attraction between two charges, A and B, is proportional to
			A)	(charge A) + (charge B) + (distance between the charges)2
			B)	(charge A) x (charge B) x (distance between the charges)2
			C)	(charge A) x (charge B) + (distance between the charges)2
			D)	(charge A) x (charge B) / (distance between the charges)2
			E)	(distance between the charges)2/(charge A) x (charge B)
5			Predict which of the following solids has the greatest lattice energy.
			A)	CsI
			B)	NaF
			C)	SrCl2
			D)	KF
			E)	SrO
6			Ionic compounds normally conduct electricity
			A)	when in the solid state.
			B)	only when molten.
			C)	when in aqueous solution or molten.
			D)	only when in aqueous solution.
			E)	when a solid or in aqueous solution.
7			Order the following by decreasing bond length: C≡C, C=C, C-C
			A)	they are all the same
			B)	C≡C, C=C, C-C
			C)	C≡C, C-C, C=C
			D)	C-C, C=C, C≡C
			E)	C=C, C-C, C≡C
8			List the following bonds in order of decreasing strength: Br-Br, Cl-Cl, F-F, I-I.
			A)	F-F, Cl-Cl, I-I, Br-Br
			B)	F-F, Br-Br, Cl-Cl, I-I
			C)	I-I, Br-Br, Cl-Cl, F-F
			D)	F-F, Cl-Cl, Br-Br, I-I
			E)	I-I, Cl-Cl, Br-Br, F-F
9			Which one of the following is not characteristic of substances composed of small, covalently-bonded molecules?
			A)	low melting point
			B)	low boiling point
			C)	weak bonds
			D)	poor electrical conductor when solid
			E)	poor electrical conductor when molten
10			Electronegativity is a measure of
			A)	the energy needed to remove an electron from an atom.
			B)	the energy released when an electron is added to an atom.
			C)	the magnitude of the negative charge on an electron.
			D)	the attraction by an atom for electrons in a chemical bond.
			E)	the magnitude of the negative charge on a molecule.
11			Which of the following elements is the most electronegative?
			A)	C
			B)	Si
			C)	As
			D)	Cl
			E)	Sr
12			Consider an isolated H-C bond in an organic compound. Based on the electronegativities of the two elements, which of the following best describes the net charge on the carbon atom?
			A)	no polarization of the bond, i.e. no net charge
			B)	a full negative charge
			C)	a full positive charge
			D)	a partial negative charge
			E)	a partial positive charge
13			Which of the following lists orders the bonds from the most to the least covalent character?
			A)	H-C, N-H, H-O
			B)	H-C, H-O, N-H
			C)	H-O, N-H, H-C
			D)	N-H, H-O, H-C
			E)	N-H, H-C, H-O
14			Based on electronegativity trends in the periodic table, predict which of the following compounds will have the greatest % ionic character in its bonds.
			A)	HCl
			B)	CaI2
			C)	CaCl2
			D)	SrF2
			E)	SrCl2
15			Which one of the following properties is not characteristic of typical metals?
			A)	moderately high melting point
			B)	high boiling point
			C)	brittleness
			D)	good electrical conductor when solid
			E)	good electrical conductor when molten