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Ch.2 Definitons

Chem. Defs.

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 subtracting the accepted value from the experimental value, dividing the difference by the accepted value, and then multiplying by 100.
Significant Figures Consists of all the digits known with certainty plus one final digit, which is somewhat certain or is estimated.
Scientific Notation Numbers are written in the form M * 10n, where the factor M is greater than or equal to 1 but less than 10 and n is a whole number.
Created by: cortneynboles
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