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Chemistry 104 Exam 1 Review/46 Complete Questions with answers
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Chemistry 104 Exam 1 Review/46Complete Questions with answers
Chemistry - -the study of the composition, structure, and properties of
matter and the changes it undergoes
-Scientific Method - -set of general procedures based on experimentation
and observation used to acquire scientific knowledge and explain natural
phenomena
-Hypothesis - -model or statement that can be tested by experiment, offers
an explanation for a scientific law
-Experiment - -well defines controlled procedure for obtaining information
about a system under study
-Observation - -statement that describes something we see, hear, smell,
taste, or feel
-Scientific Fact - -is a reproducible piece of data about some natural
phenomenon that is obtained from experimentation
-Scientific Law - -generalization that summarizes scientific facts about a
natural phenomenon
-Scientific Theory - -scientific hypothesis that has been tested and validated
over a long period of time
-Exact Number - -number that has a value with no uncertainty in it, known
exactly
-Inexact Number - -number that has a value with a degree of uncertainty in
it
-Precision - -indicator of how close a series of measurements on the sam
object are to each other
-Accuracy - -indicator of how close a measurement comes to a true or
accepted value
-Significant Figures - -digits in any measurement that are known with
certainty plus one digit that is uncertain
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