Chemistry Chapter 3

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the power to which a number is raised

a group of basic units in the SI system

combinations of fundamental units

a measure of the amount of matter in a given substance

a convenient way of expressing very large and very small numbers as a mantissa between 1 and 10 which is multiplied by 10 raised to some power

a number that indicates quantity and is followed by a unit

one increment of the system being used to measure

the number of units determined by the act of measuring