Chemistry, 24.10.2020 01:00 medintiffany413
Determine whether each statement is an example of a physical change or a chemical change.
-Paper is shredded
-An egg is fried
-wood is burned
-Dry Ice (Solid Carbon Dioxide) vaporizes to from Carbon Dioxide
-Newspaper Yellows in the sun
-Wax Melts On A hot Stove
Answers: 2
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An electron moved from shell n = 2 to shell n = 1. what most likely happened during the transition? a fraction of a photon was added. a photon of energy was absorbed. a fraction of a photon was removed. a photon of energy was released.
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Ageologist determines that a sample of a mineral can't be scratched by a steel nail but can be scratched by a masonry drill bit. based on this information, the sample mineral has to be softer than a. orthoclase. b. fluorite. c. apatite. d. corundum.
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Aroller coaster is traveling at 13 mi./s when you purchase a hill that is 400 m long and down the hill exonerate at 4.0 m/s squared what is the final velocity of the posterior found your answer to the nearest number
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Determine whether each statement is an example of a physical change or a chemical change.
-Paper is...
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