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Chapter 1, CHEM 105
Intructor: Angela McGuirk, MMCC
23
Chemistry
Undergraduate 1
01/10/2011

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Term
Celsius temperature scale
Definition
A temperature scale on which water has a freezing point of 0 degrees and a boiling of 100 degrees
Term
Centimeter
Definition
A unit of length in the metric system ; there are 2.54 cm in 1 in
Term
Conversion factor
Definition
A ratio in which the numerator and denominator are quantities from an equality or given relationship
Term
Cubic centimeter
Definition
The volume of a cube that has 1 cm sides, equal to 1mL
Term
Density
Definition
The relationship of the mass of an object to its volume expressed as grams per cubic centimeter or grams per milliliter
Term
Equality
Definition
A relationship between two units that measure the same quantity
Term
Exact number
Definition
A number obtained by counting or by definition
Term
Gram
Definition
The metric unit used in measurement of mass
Term
Kelvin temperature scale
Definition
A temperature scale on which the lowest possible temperature is 0K
Term
Kilogram
Definition
A metric mass of 1000g; the SI standard unit of mass
Term
Liter
Definition
The metric unit for volume that is slightly larger than a quart
Term
Mass
Definition
A measure of the quantity of material in an object
Term
Measured number
Definition
A number obtained when a quantity is determined by using a measuring device
Term
Meter
Definition
The metric unit for length that is slightly longer than a yard; the SI standard unit of length
Term
Metric system
Definition
A system of measurement used by scientists and in most countries of the world
Term
Milliliter
Definition
A metric unit of volume equal to one-thousandth of a L
Term
Prefix
Definition
The part of the name of a metric unit that precedes the base unit and specifies the size of the measurement
Term
Scientific notation
Definition
A form of writing large and small numbers using a coefficient from 1 to 9 followed by a power of 10
Term
Second
Definition
A unit of time used in both the SI and metric system
Term
Significant figures
Definition
The numbers recorded in a measurement
Term
Specific gravity
Definition
The relationship between the density of a substance and the density of water
Term
Temperature
Definition
An indicator of the hotness or coldness of an object
Term
Volume
Definition
The amount of space occupied by a substance
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