Bonding and Resonance Structures
Lewis diagrams for nitrate and nitrite ions are shown below. Choose the statement that correctly describes the relationship between the two ions in terms of bond length and bond energy.
Nitrite has longer and stronger bonds than nitrate
Nitrite has longer and stronger bonds than nitrate.
Nitrite has shorter and stronger bonds than nitrate.
Nitrite has shorter and weaker bonds than nitrate.
Which of the following compounds would have the highest lattice energy?
LiF
MgCl2
CaBr2
C2H6
The graph below shows the amount of potential energy between two hydrogen atoms as the distance between them changes. At which point in the graph would a molecule of H2 be the most stable?
Point A
Point B
Point C
Point D
There are several different potential Lewis diagrams for the sulfate ion. What is the molecule geometry of a sulfate ion that obeys the octet rule?
Tetrahedral
Trigonal Planar
Trigonal Pyramidal
Octahedral
Consider the Lewis structures for the following molecules: CO2, CO3^2-, NO2^-, and NO3^-. Which of the following molecules would have the shortest bond?
CO2
CO3^2-
NO2^-
NO3^-
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