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Chem 1061 MC 1

TermDefinition
Scientific theory best available explanation of the existing evidence/data/observations
Scientific law description of the phenomenon; usually concise or mathematical
Atoms smallest unit of an element
Molecules contain two of more atoms, can be different types but doesn't have to be
Compounds contain 2 or more different elements
Element pure substance, only one type of atom; differentiated by the type of atom
Isotope same number of protons & electrons but different number of neutrons
4 fundamental forces gravity, electrostatic, strong nuclear, weak nuclear
Gravity pulls objects with mass toward each other
Electrostatic forces the attractions and repulsions between charged particles & magnets
Thermal energy measure of the average kinetic energy of an atom
Attractions lower the potential energy of a system
Repulsions raise the potential energy of a system
Systems are most stable when the attractive forces and the repulsive forces are equal
The temperature it takes for a phase change depends on the strength of the intermolecular forces
Hypothesis educated guess/proposed explanation for a phenomenon
How to make a scientific argument Claim, evidence, reasoning
Created by: haku47
 

 



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