Practice Exam 2 Answers
A. 3, 2, 1,6
2. B. strong electrolyte
Oxidation Reduction Reaction
What is the percent yield of the followi
Practice Exam 2
* Remember what problems to do first, as you may feel pushed for
1. Balance the following equation.
_CaCl2 + _Na3PO4 _Ca3(PO4)2 + _NaCl
a. 3, 2, 1, 6
b. 3, 2, 1, 4
c. 2, 1, 4, 6
d. 3, 1, 4, 6
2. The following equation is
HCl(aq) H+ (
Consider the variety of objects around you.
Stars, planets, cell phones, plantsthey are all made
of a finite number of chemical elements.
How many chemical
elements have been
What is Chemistry?
The central science.
Chemistry the study of the properties and
behavior of matter.
Matter the physical material of the universe.
Matter anything that has mass and takes up
General Properties of
Aqueous Solution a solution in which water is the
Solution a homogeneous mixture of two or more
Solvent the substance present in the greate
The Wave Nature of Light
We have gained much knowledge and insight about
the electronic structure of atoms by observing the
absorption and emission of electromagnetic
radiation (EMR) by matter.
EMR travels throu
Thermodynamics the study of energy and its
Thermochemistry the relationship between
chemical reactions and energy changes.
Energy () the capacity to do work or transfer heat.
Work () energy transfer
Development of the
The number of chemical elements known to
humanity has grown over time.
During the period from 1800 to 1865, the number
of known elements went from 31 to 63.
Stoichiometry the area of study that examines the
quantities of substances consumed and produced in
Stoichiometry is based upon the Law of Conservation of