100. Draw ionic Lewis structures for KF and CaC. Use the in- formation and the method in the previous problem to pre- dict which of these two ionic solids has the higher melting point.
100. Draw ionic Lewis structures for KF and CaC. Use the in- formation and the method in the previous problem to pre- dict which of these two ionic solids has the higher melting point.
Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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#100

Transcribed Image Text:98. Draw a Lewis structure for each molecule and determine
its molecular geometry. What kind of intermolecular
forces are present in each substance?
(a) BC13 (remember that B is a frequent exception to the
gaoctet rule) ovol n
(b) HCOH (carbon is central; each H and O bonded di-
no rectly to C)
(c) CS2
(d) NCI3
100. Draw ionic Lewis structures for KF and CaO. Use the in-
formation and the method in the previous problem to pre-
dict which of these two ionic solids has the higher melting
point.
abn
102. Explain the observed trend in the boiling points of the
compounds listed. Why is H,O atypical?
Compound
Boiling Point
H2Te
-2 °C
H2Se
-41.5 °C
elupla.(s)
H2S
-60.7 °C
H20
+100 °C
104. If 1.10 g of steam at 100.0 °C condenses into 38.5 g of water,
initially at 27.0 °C, in an insulated container, what is the
final temperature of the entire water sample? Assume no
loss of heat into the surroundings.
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