Discuss differences in ordering of the aluminum in the
tetrahedral site of each of the potassium...
Discuss differences in ordering of the aluminum in the
tetrahedral site of each of the potassium feldspars and how this is
reflected in the crystal system of each. What is ordering in this
context?
A certain mineral used as a food preservative contains 8.242 %
potassium, 5.687% aluminum, 5.099% hydrogen, 67.45 % oxygen and
13.52 % sulfur. What is the empirical formula for this
compound?
Write the balanced net ionic equations for the following: (a)
aluminum and potassium hydroxide, yielding [Al(OH)4]
– and hydrogen gas; (b) hydrogen ions and
[Al(OH)4] –, yielding aluminum hydroxide; (c)
aluminum hydroxide and hydrogen ions, yielding
[Al(H2O)6]3+; and (d) the
formation of alum from potassium ions, sulfate ions,
[Al(H2O)6]3+, and water.
Discuss the
differences between the following models and state the advantages
and disadvantages of each of these models:
a.
Forecasting model
b.
Linear regression model
c.
Simulation model
For each pair of elements and compounds listed below, discuss
their similarities and/or differences in terms of physical and
chemical properties.
(a) Boron (B) and silicon (Si)
(b) BeCl2 and MgCl2;
(c) Al2O3 and In2O3;