CHEMISTRY Chapter 1: Introduction Section 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 CHEMISTRY ORGANIC CARBON CONTAINING MATTER INORGANIC NON-CARBON BASED MATTER
BRANCHES OF CHEMISTRY ANALYTICAL UNDERSTANDING COMPOSITION PHYSICAL SUBSTANCE BEHAVIOR
BRANCHES OF CHEMISTRY BIOCHEMISTRY 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 and-Historyhttp:// and-History go-bad /10/ go-bad /10/ free-environment.htmlhttp://blog.thoughtpick.com/2009/11/hybrid-cars-social-media-heading-towards-a-fuel- free-environment.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 Properties
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Density Amount of matter in volume D = M V
Physical Changes Do not affect composition
Chemical Changes DO affect composition
Copyright © by Houghton Mifflin Company 2-21 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.