# Shared Flashcard Set

## Details

chap 2
key terms
20
Chemistry
04/19/2008

Term
 conversion factor
Definition
 a factor used to convert between two separate units; a conversion factor is constructed from any two quantities known to be equivalent
Term
 decimal part
Definition
 one part of a number expressed in scientific notation
Term
 density
Definition
 a fundamental property of materials that differs from one substance to another. the units od density are those of mass divided by volume, most commonly expressed in g/cm3, g/mL, or g/L
Term
 English system
Definition
 a unit system commonly used in the U.S.
Term
 exponent
Definition
 a number that represents the number of times a term is multiplied by itself
Term
 exponential part
Definition
 one part of a number expressed in scientific notation; it represents the number of places the decimal point has moved
Term
 international system (SI)
Definition
 the standard set of units for science measurements, based on the metric system
Term
 kilogram
Definition
 the SI standard unit of mass
Term
 Liter
Definition
 a measurement of volume 1L= 1000mL1L= 1.057 quarts1U.S. gallon= 3.785L
Term
 Mass
Definition
 a measure of the quantity of matter within an object
Term
 meter (m)
Definition
 the SI standard unit of lenght
Term
 Metric System
Definition
 the unit system commonly used throughout most of the world
Term
 prefix multipliers
Definition
 prefixes used by the SI system with the standard units. the multipliers change the value of the unit by powers of 10
Term
 scientific notation
Definition
 a system used to write very big or very small numbers
Term
 second (s)
Definition
 the SI unit of time
Term
 SI units
Definition
 the most convenient system of units for science measurements, based on the metric system. The se of standard units agreed on by scientists throughout the world
Term
 Significant figures
Definition
 the non-place-holding digits in a reported measurement; they repersent the precision of a measured quantity
Term
 solution map
Definition
 it is a visual outline that shows the strategic route required to solve a problem
Term
 units
Definition
 previously agreed upon quantities used to report experimental measurements units are vital in chemistry
Term
 volume
Definition
 a measure of space. any unit of lenght, when cubed, becomes a unit of volume
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