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Chem Ch 1 Test 10/3

2025

QuestionAnswer
formula for density D= mass/volume
formula for mass M= density x volume
Formula for volume V = mass/density
accuracy how close you are to the known value
precision getting the same value over and over again
graph a visual way to display data
error the difference between an experimental value and an accepted value
percent error expresses error as a percentage of the accepted value
Independent variable variable that changes during an experiment
significant figures all known digits and one estimated digit
dependent variable variable whose value depends on the independent variable
pure research to gain knowledge for the sake of knowledge itself
applied research research to solve a specific problem
theory an explanation of a natural phenomenon, based on many observations and investigations over time
law a relationship that is supported by many experiements
mass a measurement that reflects the amount of matter
equation for percent error Iexperiemental value - actual valueI / actual value x 100
when adding and subtracting sig figs, you... round to the least number of decimal places
when multiplying and dividing sig figs, you... round to least number of sig figs
Created by: user-1777988
 

 



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