-+Chemistry

toc =Chemistry=

(ASG) is a science that deals with the composition, structure, and properties of substances, as well as the transformations that they undergo.

The word "chemistry" used casually in common talk refers to harmonious interaction between people, though, of course, derived from the scientific usage.

I think you can guess which of these is probably more productive:



**// Reasons to Study Chemistry: //** • Chemistry can be useful in explaining the natural world and preparing people for career opportunities

• Chemistry supplies the medicines, materials, and technology that doctors use to treat patients ~Medicines: prescription and non-prescription ~Materials: to repair and replace body ~Biotechnology: science is applied to the production of biological products or processes **Matter**

(ASG) has so many definitions that it is so hard to narrow it down, but here are some basic ones:
 * Any substance that has mass.
 * Any substance that occupies space.
 * Can be living or nonliving.
 * All physical objects are composed of matter. (One of the few things you'll study in chemistry that is not made up of matter is the photon!)
 * They tend to be composed mostly of atoms consisting of protons, neutrons, and electrons.

Matter can exist in various phases:
 * Solid
 * Liquid
 * Gas
 * Plasma

Check out this video on Matter and its states: media type="youtube" key="BcjJ7FxH3j0?fs=1" height="405" width="500"

=Organic Chemistry= Organic Chemistry- the study of all chemicals containing carbon This is the structure of the carbon atom. = = media type="youtube" key="4rRA6fuS_JU?fs=1" height="405" width="500"
 * Example of how Organic Chemistry is used is when Athletes inhale chemicals developed by organic chemists to control symptoms of asthma.
 * Carbon is an organic compound

=Inorganic Chemistry=

Inorganic Chemistry- the study of chemicals that do not contain carbon.
 * Most inorganic chemicals are found in mainly non-living things, for example rocks.
 * An example of how Inorganic chemistry is used is when an inorganic chemist might explain how the lack of calcium in a person can affect the growth and repair of bones.
 * Water (H2O), Potassium Chloride (KCl), and Sodium Chloride (NaCl) are examples of inorganic compounds

Potassium Chloride The formation of Sodium Chloride. Water Molecule

=Biochemistry = media type="youtube" key="jSDZ8uWxUw8?fs=1" height="385" width="480"
 * The study of processes that take place in organisms
 * Today the main focus of pure biochemistry is in understanding how biological molecules give rise to the processes that occur within living cells which in turn relates greatly to the study and understanding of whole organisms.
 * Examples
 * Study of how the energy used for the contraction of muscles is produced and stored
 * The study of photosynthesis
 * The study of digestion
 * The study of respirtation
 * Famous biochemists
 * Friedrich Wöhler- 1828 through the synthesis of urea proved that organic compounds can be made artificially
 * Anselme Payen- 1833 discovery of the first enzyme- diasatase/ amylase
 * James D. Watson, Francis Crick, Rosalind Franklin, and Maurice Wilkins- 1950's solve DNA structure

=Analytical Chemistry =


 * the area of study that focuses on the composition of matter
 * Examples
 * Measuring the level of lead in toys
 * Testing for chemicals in blood
 * Checking the pH in your fish tank
 * The quantity of metal in an ore is tested to determine if it is feasable to mine

media type="youtube" key="IZfysmZdhpM?fs=1" height="385" width="480"

=Physical Chemistry=

Deals with the mechanism, rate, and energy transfer that occurs when matter changes.



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=Pure Chemistry=

The pursuit of chemical knowledge for its own sake (ex: studying the periodic table in high school chemistry).



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=Applied Chemistry=

The science study directed towards a goal or future application.



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=Aspirin=

Found to block chemicals that cause pain, which are the same chemicals that are involved in the formation of blood clots. 



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=Technology & Science =


 * Chemistry supplies medicines, materials, and technology that doctors use to treat patients:)**

TECHNOLOGY...
 * belongs to a system of applied science.
 * is the means by which a society provides its members with the things needed and desired.
 * makes our lives easier by providing us with the medicines and materials to do things quicker and more effectively.

Through the use of technology, chemists were able to discover and recreate medicines like aspirin to help fight blood clots that can cause heart attacks.

Without technology and chemistry our world wouldn't be as advanced and knowledgeable as we are now! (We would never travel to the moon)

Everything has its flaws:( Although technology is very very useful and necessary, it can be very harmful to people and the environment. There are many debates about the risks and benefits of technology.) So be careful.

With the use of technology, chemists find ways to...
 * conserve energy using insulation. (Used in refrigerators)
 * produce energy by burning fossil fuels called petroleum (diesel) or by burning fuels from plants such as soy beans (biodiesel).
 * store energy with batteries. (many rechargeable)

media type="youtube" key="4AXne-DKb2M?fs=1" height="385" width="480"

(P.S. this video is very strange but it gets the message across.)

=Reasons to Study Chemistry=

Chemistry is useful for: 1. Explaining the natural world 2. Preparing for a career 3. Being an informed citizen