1.At 0 K, the entropy of a perfect crystal is _
d. none of the above
e. not enough information
2. During which of the following processes does the entropy of the system decrease?
a. Salt crystals dissolve in water.
b. Air escapes from a
The form of polonium (Po) has a density of 9.196 g/cm3 and crystallizes in a simple cubic
structure. What is the atomic radius of polonium?
a. 119 pm
d. 335 pm
b. 168 pm
e. 419 pm
c. 266 pm
Gold has a face-centered cubic structure with a unit cell edge le
1. Which of the following concentration measures will change in value as the temperature of a solution changes?
A) mass percent
B) mole fraction
all of these
2. An aqueous solution of a compound with a molar mass of 34.02 g/mol
Chemistry 1B10W: Professor Rettig - Chapter 10, Lecture 1, Jan. 13, 2010
Chapter 10: The Shapes of Molecules
Students Review: Chapters 8,9 - Lewis Dots and Octets, tendency to achieve noble gas electron configuration . Atom sizes, electronegativity trends