A. Major Points and Concepts Section
Chapter 1
Chemistry- the science that deals with materials of the universe and the changes that these materials undergo
Branches of Chemistry-
-Analytical Chemistry- analyses different properties of compounds
-Biochemistry- chemistry of life and biology
-Computational Chemistry- uses computers to study chemistry
-Organic Chemistry- uses and deals with carbon
-Inorganic Chemistry- deals with anything that is not carbon
-Physical Chemistry- deals with physics and chemistry
Scientific Method-
1. state the problem that make observations
-Quantitative means having numbers
-Qualitative means having no numbers
2. formulate hypothese
3. perform test
4. form a theory if the data allows or create a new hypothesis if it does not support data
Natural Law- is a summary of observed behavior
Theory- an explanation of behavior
Chapter 2
Scientific Notation-
-Any number can be represented as the product of a number between 1 and 10 and a power of 10(either positive or negative)
-The power of 10 depends on the number of places the decimal points is moved and in which direction. -if the decimal moves to the left you add ( most likely positive)
-if the decimal moves to the right you subtract( most likely negative)
Units- make sure to always include units in your answers
Significant Figures-
-Zero Rules
-Leading Zeroszeros- zeros that precede all of the nonzero digits, leading zeros are never significant
-Captive Zeros- always count as significant figures, zeros that fall between nonzero digits
-Trailing Zeros- only significant with a decimal place, zeros at the right end of the number
Converting Units-
-This is also know as Dimensional Analysis.
-Conversion factor- a ratio of the two part of the statement that relates to two units
-You must Always use some conversion factor.
Temperature-
-the quantity that tells how hot or cold something is
-can be measured in degrees Celsius or degrees Fahrenheit
Density-
-The masses of the atoms and the spacing between them determines density
-Density is the measure of the relative "heaviness" of objects with a constant volume.
-Density = mass/volume
-Measured in g/cm^3 or g/ml
B.Example Calculations/problem section
C. Online Resources
D. Video Resources
E. Activity Resources