Lecture 3 Chapter 1

Lecture 3 Chapter 1 - General Chemistry I Fall 2007 Joann...

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General Chemistry I Fall 2007 Joann S. Monko Chemistry 9th ed. Raymond Chang
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Temperature °F = 9/5 (°C) + 32 K = (°C) + 273.15 Farhenheit °F general public (USA) Celsius °C most scientific measurements Kelvin K calculations that incorporate temperature data Chemistry for Changing Times , 10th ed., Hill & Kolb
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Chemical Properties A characteristic that describes the way the substance undergoes or resists change to form a new substance. Reactivity with other substances Reactivity with an energy source Usually specify conditions (temp., pressure, etc.) 5th ed.
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Physical and Chemical Change Physical Change Doesn’t alter the basic nature of the substance Size, Shape, State of Matter Chemical Change A transformation into one or more new substances. A new identity with new physical properties 5th ed. 5th ed.
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Physical or Chemical change? 1. A cup of household bleach changes the color of your favorite T-shirt from purple to pink. 2. Water vapor in your exhaled breath condenses in the air on a cold day. 3. Plants use carbon dioxide from the air to make sugar. 4.
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Lecture 3 Chapter 1 - General Chemistry I Fall 2007 Joann...

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