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Chapter 1
Chapter 1 vocab
24
Chemistry
11th Grade
01/16/2013

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Term
Celsius temperature scale
Definition

A temperature scale on which water has a freezing poing of 0oC and has a boiling point of 100oC

 

Term
centimeter (cm)
Definition
A unit of length in the metric system; there are 2.54 cm in 1 inch
Term
Conversion Factor
Definition
A ratio in which the numerator and denominator are quantities from an equality or given relationship. 
Term
cubic centimeter (cm3 or cc)
Definition
The volume of a cube that has 1-cm sides; equal to 1 mL
Term
density
Definition
The relationship of mass of an object to its volume expressed as grams per cumic centimeter (g/cm3), grams per millileter (g/mL), or grams per liter (g/L)
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 (g)
Definition
The metric unit used in measurements of mass
Term
Kelvin (K) tempurature scale
Definition
A temperature scale on which the lowest possible temperature is 0 K
Term
kilogram (kg)
Definition
A metric mass of 1000 g. and equal to 2.20 lb. The kilogram is the SI standard unit of mass.
Term
liter (L)
Definition
The metric unit 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. (Ruler)
Term
meter (m)
Definition
The metric unit for length that is slightly longer than a yard. The meter is 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 (mL)
Definition
A metric unit of volume equal to one-thousandth of a liter (.001 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. All prefixes are related on a decimal scale.
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
The standard unit of time in the SI and metric system.
Term
SI units
Definition
The international system of units that modifies the metric system
Term
significant figures
Definition
The numbers recorded in a measurment.
Term
specific gravity (sp gr)
Definition

A relationship between the density of a substance and the density of water. 

 

density of sample


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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