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Chemistry Q1

Chapter One

QuestionAnswer
define chemistry the study of the nature of matter and the changes that matter undergoes
define matter anything that possesses mass and occupies space
what is the "nature of matter?" the composition of a particular kind of matter,the forces holding its parts together,and its observable properties
define physical change physical change does not cause a change in the chemical composition of a material
examples of physical change water that goest from freezing, melting, boiling...always remains water
define chemical change chemical change results in the formation of new substances
examples of chemical change embalming to slow decomposition,decomposition of human remains,creamation
define energy the ability to do work
define kinetic energy energy in motion
examples of kinetic energy water falling,electricity flowing
define potential energy energy stored
examples of potential energy engergy stored in a battery,a drawn rubber band
define inorganic chemistry study of compounds usually containing elements other than carbon
define organic chemistry study of certain carbon compounds
define biochemistry study of compounds produced by living organisms
define embalming chemistry study of those types of matter and changes related to the disinfection and preservation of human remains
define thanatochemistry study of physical and chemical changes in the human body cause by the process of death
identify the common set of units used by all scientists metric system/SI units
standard unit of length meter (m)
standard unit of volume liter (L)
standard unit of mass kilogram (kg)
standard unit of heat calorie (cal)
define calorie the standard unit of heat
define Calorie one kilocalorie = 1000 calories = one Cal
Mega M 10/6
Kilo k 10/3
Deci d 10-1
Centi c 10-2
Milli m 10-3
Micro u 10-6
Nano n 10-9
define law of conservation of mass matter is neither created nor destroyed
define law of conservation of energy energy is neither created nor destroyed
Created by: lisa baxter
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