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Nathan Perkins-Final exam coggle (the scientist (Greek scientist didn'…
Nathan Perkins-Final exam coggle
the scientist
Greek scientist didn't experiment they argued to prove things were the way they were
James Chadwick
Proved the neutron existed
Ernest Rutherford gold foil experiment
Atom is empty space
Democritus
Didn't do any experiments Argued about things using the scientific method
John Dalton
Element is only composed of one type of atom
J. J. Thomson
discovered electrons
Robert Millikan
Oil drop experiment to find charge of an electron
Fahrenheit to Celsius equation (F-32)(.5556)= C
Kelvin to Celsius K-273
Celsius to Fahrenheit equation( c*1.8)+32
density formulas
Volume=Mass/Density
Mass= density(volume)
Density=Mass/Volume
meters conversion
K M D Unit d c m
areas of chemistry
Biochemistry
Study of processes that take place in an organism
Examples include muscle contraction and digestion
Analytical Chemistry
Analytical chemistry focuses on the composition of matter
example measuring level of lead in drinking water is an example of this
Inorganic chemistry
study of chemicals that don't contain carbon
such things like rock, and non living things
Physical chemistry
Is the area when matter undergoes chemistry a the deals with, mechanism, rate, and the energy transfer that occurs when matter undergoes a change
Organic chemistry
study of all chemicals containing carbon
conservation of mass, matter cant be created or destroyed
atom, proton is positive neutron is neutral and electron is negative
Describing matter
Extensive properties
Definition
Depends on the amount of matter
examples
Mass
Volume
Intensive properties
definition
Depends on the type of matter and what it is made up of
Examples
Density
Hardness
Chemical reactions
chemical properties
definition
ability to undergo a specific chemical change
chemical change
one or more substances change into one or more substances
the reactants start a reaction
At the end of a reaction you get the products
formation or a precipitate:little pieces of material in a liquid that weren't present before
Transfer of energy:example light and heat
change in color
Productions gas will bubble and have a new smell
homogeneous mixture uniform through out mixture, heterogeneous not uniform throughout substance.