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# Chemistry Vocabulary

### Chapter 1-3

TermDefinition
Analytical Chemistry The area of chemistry that focuses on the composition of matter
Biochemistry The area of chemistry that focuses on processes that take place in organisms
Chemistry The study of the composition of matter and the changes that matter undergoes
Inorganic Chemistry The study of substance that, in general do not contain carbon
Matter Anything that has mass and occupies space
Organic Chemistry The study of compounds containing carbon
Physical Chemistry The area of chemistry that deals with the mechanism, the rate and the energy transfer that occur when matter undergoes a change
Absolute Zero The zero point on the Kelvin temperature scale equivalent to -273.15c
Accuracy The closeness of a measurement to the value of what is being measured
Density The ratio of mass of an object to its volume
Gram A metric mass unit equal to the mass of 1cm3 of water at 4 degree celsius
International System of units (SI) The revised version of the metric system, adopted by international agreement in 1960
Kilogram The mass of 1 liter of water at 4 degree celsius it is the basic unit of mass in SI
Liter The volume of a cube measuring 10 centimeter on edge (1000cm3) its common unprefixed unit of volume in the metric system
Percent Error The percent that a measured value differs from the accepted value
Precision Describes the closeness, or reproducibility of a set of measurements
Significant Fiqures All the digits that can be known precisely in a measurements plus a last estimated digit
Temperature A measure of the average kinetic energy of particles in matter; temperature determines the directions of heat transfer
Weight A forces that measures the pull of gravity on a given mass
Created by: aleiarenee

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