Chemistry: Atoms First
18th Edition
ISBN: 9781938168154
Author: Richard Langley, Klaus Theopold, Paul Flowers
Publisher: OpenStax College
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Textbook Question
Chapter 9, Problem 102E
For which of the following substances is the least energy required to convert one mole of the solid into separate ions?
(a)
(b)
(c)
(d)
(e)
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Consider the following compounds: BeCl 2 , MgBr 2 , and SrBr 2 . Answer the following questions based on expected periodic trends:
(a) Which is expected to have the shortest ionic bonds?
(b) Which is expected to have the highest lattice energy?
(c) Which is expected to have the lowest melting point?
One of the following pictures(Figure 1) represents NaCl and one represents MgO.
Which is which?
(a) is NaCl and (b) is MgO
(b) is NaCl and (a) is MgO
Which has the larger lattice energy?
NaCl
MgO
(a) Describe the molecule xenon trioxide, XeO3, using four possible Lewis structures, one each with zero, one, two, or three Xe—O double bonds. (b) Do any of these resonance structures satisfy the octet rule for every atom in the molecule? (c) Do any of the four Lewis structures have multiple resonance structures? If so, how many resonance structures do you find? (d) Which of the Lewis structures in (a) yields the most favorable formal charges for the molecule?
Chapter 9 Solutions
Chemistry: Atoms First
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