Equations

Equations - Chapter 5 Chemical Reactions and Quantities...

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LecturePLUS Timberlake 1 Chapter 5 Chemical Reactions and Quantities Chemical Changes Balancing Chemical Equations
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LecturePLUS Timberlake 2 Physical Properties color melting point boiling point electrical conductivity specific heat density state (solid, liquid, or gas)
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LecturePLUS Timberlake 3 Physical Change Changes in physical properties melting boiling condensation No change occurs in the identity of the substance Example: Ice , rain, and steam are all water
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LecturePLUS Timberlake 4 Chemical Change Atoms in the reactants are rearranged to form one or more different substances Old bonds are broken; new bonds form Examples : Fe and O 2 form rust ( Fe 2 O 3 ) Ag and S form tarnish ( Ag 2 S )
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LecturePLUS Timberlake 5 Learning Check E1 Classify each of the following as a 1) physical change or 2) chemical change A. ____ a burning candle B. ____ melting ice C. ____ toasting a marshmallow D. ____ cutting a pizza E. ____ polishing silver
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LecturePLUS Timberlake 6 Solution E1 Classify each of the following as a 1) physical change or 2) chemical change A. __ 2 __ a burning candle B. __ 1 _ melting ice C. __ 2 __ toasting a marshmallow D. __ 1 __ cutting a pizza E. __ 2 __ polishing silver
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This note was uploaded on 11/09/2011 for the course CHEM 100 taught by Professor Sdfsdf during the Winter '08 term at BYU.

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Equations - Chapter 5 Chemical Reactions and Quantities...

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