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lect02 - Being Better Life Through Chemistry Disinfection...

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Lecture 2 - Why Study Chemistry?
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Topics Chapter Topic 1-3 Review 5 Periodicity, Atomic Structure 6 Ionic Compounds 7 Covalent Compounds 4 Reactions 8 Thermochemistry
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Chapter Topic 13, 17 Chemical Equilibrium, Thermodynamics 9 Gases 18 Electrochemistry 11 Solutions 15, 16 Acids and Bases 10 The Solid State 12 Chemical Kinetics 22 Nuclear Chemistry 23 Organic Chemistry
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Readings Chapter 1 and 2.
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Assignment #1 Chapter 1 and 2 Answers are posted on the website.
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What is Chemistry? Why Study Chemistry?
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What is Chemistry? Study of the structure of matter From the smallest (atoms) to the largest (materials) Atomic or molecular properties affect material properties Study of the changes matter undergoes (reactions)
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Why Study Chemistry? ACTIVITY CHEMISTRY Had a shower Surface Put on Deodorant Biochemistry, Al Put on Makeup Colors Put on Aftershave Fragrances Put on Clothes Polymers
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ACTIVITY CHEMISTRY Made Breakfast Food Ate Breakfast Metabolic Had a Cigarette Drug Travelled on the Bus Combustion, Pollution Wrote Notes Surface
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ACTIVITY CHEMISTRY Breathing, Biochemistry Thinking,
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Unformatted text preview: Being Better Life Through Chemistry Disinfection of drinking water by chlorine Chemical fertilizers and pesticides Synthetic polymers Fewer cavities (fluoridation of water) Drugs Junk food Types of Chemistry (and chemists) ■ Organic - C containing molecules ■ Inorganic - often metal containing molecules ■ Physical - mechanisms, energy flow e.g. making water: 2 H 2(g) + O 2(g) ¾ 2H 2 O (g) ■ What are the reaction steps? ■ Is heat released? ■ How fast is the reaction? Types of Chemistry (and chemists) ■ Organic - C containing molecules ■ Inorganic - often metal containing molecules ■ Physical - mechanisms, energy flow ■ Analytical - identification and measurement ■ Bio - chemistry of life e.g. O 3 Layer Thinning ■ Caused by organic chemicals ■ Accelerated by inorganic species ■ Reaction mechanism - physical chemistry ■ Ozone measurement - analytical chemistry ■ Effects of thin ozone - biochemistry...
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