CHEMISTRY

Chapter 1: IntroductionSection 1: Chem Is Try

Objectives 1.1

• List three general reasons to study chemistry

• Describe the characteristics of three common states of matter

• Differentiate between physical and chemical changes

CHEMISTRY

Composition of matter

Changes matter undergoes

MATTER

Mass

Occupies space

(everything!)

3 general reasons to be here

• You depend on chemicals

• Reactions happen all around you

• Your job will likely involve chemicals and problem solving

BRANCHES OF CHEMISTRYORGANIC

CARBON CONTAINING MATTER

INORGANICNON-CARBON BASED MATTER

BRANCHES OF CHEMISTRYANALYTICAL

UNDERSTANDING COMPOSITION

PHYSICALSUBSTANCE BEHAVIOR

BRANCHES OF CHEMISTRYBIOCHEMISTRY

CHEMISTRY OF LIVING ORGANISMS

Pure & Applied

Pure: Knowledge for knowledge

Applied: Practical research

Why Study Chemistry?

• Explain nature

• Career preparation

• Informed citizen

Why Study Chemistry?

• You will cook food in your life• You will need medicine• You may have a pool or a lawn• You will clean – would you mix

bleach and ammonia?• You will vote • You will purchase items

What areas of study require chemistry?

• MATERIALS SCIENCE• Creating new materials• ex: George de Mestral

• Burrs under microscope - Velcro

• ENERGY• Conservation• Production (corn / soy)• Storage• Alternatives

What areas of study require chemistry?

• MEDICINE & BIOTECHNOLOGY• Pharmaceutical research• Material design • Biotechnology

• AGRICULTURE• Productivity (nutrients / irrigation)• Protection (insecticides)

What areas of study require chemistry?

• ENVIRONMENT• Identify pollution• Prevent pollution

• ASTRONOMY• Analytical chemistry• Composition of objects

• Spectral analysis

Photo references

• http://www.zazzle.com/crystalline+buttons• http://www.dailykos.com/story/2009/10/15/788207/-Tales-from-the-Larder:-Salt,-You-and-Histo

ry• http://screenrant.com/csi-crime-scene-investigation-premiere-brusimm-3940/• http://crave.cnet.co.uk/gadgets/movie-and-tv-sell-outs-when-tech-product-placements-go-bad-

49297129/10/• http://lipidlibrary.aocs.org/topics/ms_fa_1/index.htm• http://www.accessexcellence.org/RC/VL/GG/dna_molecule.php• http://www.thelivingmoon.com/45jack_files/03files/Buran_003.html• http://blog.thoughtpick.com/2009/11/hybrid-cars-social-media-heading-towards-a-fuel-free-

environment.html• http://health.howstuffworks.com/medicine/modern/artificial-heart.htm• http://www.le.ac.uk/ph/faulkes/web/stars/r_st_overview.html• http://www.surveyor.in-berlin.de/himmel/Bios/Doppler-e.html

Physical Properties• Can be observed without affecting

composition• Color, Odor, Texture, Density, All

Phase change properties

• Can only be observed by changing the composition• Reaction with oxygen, other

chemicals; Combustion

Chemical PropertiesChemical Properties

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Density• Amount of matter in volume

D =MV

Physical Changes• Do not affect composition

http://rds.yahoo.com/_ylt=A0WTefVLmtNIxGoBkb6jzbkF/SIG=12mo9nise/EXP=1221913547/**http%3A//www.chemcool.com/regents/physicalbehaviorofmatter/aim10.htm

Chemical Changes• DO affect composition

http://i.treehugger.com/files/th_images/burning.car.500-thumb.jpg

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Electrolysis, the decomposition of water by an electric current, is a chemical process.

Review 1.1• List three general reasons to study chemistry

• Explain nature• Career preparation• Informed citizen

• Describe the characteristics of three common states of matter• Solid slow, set volume and shape• Liquid faster, set volume, shape of container• Gas fast, no set volume, shape of container

• Differentiate between physical and chemical changes• Physical does not change composition; chemical does

Homework

• Starting on page 7 of your homework notebook, complete Section Review 1 (p9) all questions.

• Be sure to label your index with the assignment and to number your notebook pages.