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Chem. 2 vocabulary

Chapter 2 Vocabulary

QuestionAnswer
Weight A measure of the gravitational pull on matter
Volume The amount of space occupied by an object
Density The ratio of mass to volume,or mass divided by volume
Accuracy The closeness of measurements to the correct or accepted value of the quantity measured
Precision The closeness of a set of measurements of the same quantity made in the same way
Percentage error Calculated by substracting the accepted value from the experimental value
Significant figure A measurement consist of all the digits known with certainty plus one final digit, which is somewhat uncertain or is estimated
Scientific notation A method of expressing a quantity as a number multiplied by 10 to the appropriate power
Created by: Andy Hoang
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