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CHM151 Final Exam ACTUAL UPDATED QUESTIONS AND CORRECT ANSWERS

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CHM151 Final Exam ACTUAL UPDATED QUESTIONS AND CORRECT ANSWERS

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CHM151 Final Exam ACTUAL UPDATED QUESTIONS AND CORRECT ANSWERS

chemistry definition study of the composition, properties, and
interactions of matter

, hypothesis definition tentative explanation of
observations


theory definition well-substantiated, comprehensive, testable explanation of
a particular aspect of a natural phenomena
"how" or "why"




scientific method observation, hypothesis, experiment, results


law definition statement that summarizes a vast number of experimental observations, and
describes or predicts some aspect of the natural world
"what happens" + equations


matter definition anything that occupies space and has mass




weight definition force that gravity exerts on an object


solid phase +basic properties rigid
fixed shape
fixed volume


liquid phase+basic properties flows
indefinite shape
fixed volume


gas phase +basic properties expands to fill container
indefinite shape
indefinite volume


plasma definition +examples gaseous state of matter that contains an appreciable
amount of electrically charged particles
ex. stars, lightning, tv screens


mass vs. weight Mass is a measure of the amount of matter in an object
Weight refers to the force that gravity exerts on an object

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