CHM 111 Lecture Notes - Lecture 1: Covalent Bond
25 Jun 2018
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Chapter1
Atoms molecules determinematter
behavior
Atoms buildingblocks ofelements matter
Atoms indestructible retaintheir identity in chemical rich
Matter
L
Pureswbst Mixtures
to 1
k5CHomogeneous Heterogeneous
1or
more
atoms
of 2T elements
the
same
element
ionic covalent
salts molecules
La ofDefiniteProportions definiteratioswillalwaysresort
inthe
samecompound CO
Iof MultipleProportions Combinationofelements atdifferentratios 1C 20
Sc ntific Approach toknowledge
mpirical based on observation aexperimentation
Hyothesis interpretationofobservations
subscript
Tcoelt
CH4 t202 Cor tHz0 Combustion Ran
in a
Reactants productsof combustion
Rts
Law Conservationof Mass Mass is never created nor destroyed
Sto iometry balancing reactions
Theo vs Law 1can changeovertime
Lew Fact doesn'tchange
The ygeneralexplanation forthecharacteristics andbehavior
ofnature
La statementthatsummarizes past observations predictsfuture
ones
Ma ranything thatoccupies space and hasmass
MRis classified according to state physicalform and
composition component
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stat ofmatter
boiling
Gay
so'd.info duismeaP InIoatgYaYnpaverns Td
amorphous
dnserthanliquidstgases µµ Liquid
liqui fixedvolume Tt
Gas Nofixed volume norshape solid
can be compressed
Vibration solids
Degre ofFreedom
rotation liquids
translation
Mixture homogeneous
heterogeneous
Decanting sseparation
density 1masse 9cm3 i91mL
volume
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separating whines wphysicalprocesses
Filtral nusing filter
paperafunne
Distillali boiling toevaporatemostvolatile liquid tothen
condensateit andcollectit inseparate location
chemical Cge alteration ofcomposition ofmatter
rearranging ofatoms
transformationofsubstances
intodiff substances
ex Rusting
phase
cha
Dissolutio
combush
physic phase change ex dissolution
chemical chan Ichangein composition d
Is L
26
CHM 111 Full Course Notes
Verified Note
26 documents
Document Summary
Atoms determinematterbehavior indestructible retaintheir identity in chemical rich. Sc ntific approach toknowledge mpirical based on observation aexperimentation. Fact doesn"tchange generalexplanation forthecharacteristics andbehaviorofnature statementthatsummarizes past observations predictsfutureones. M ris classified according to state physicalform andcomposition component anything that occupies space and hasmass stat ofmatter so"d. info duismeap inioatgyaynpaverns amorphous dnserthanliquidstgases liqui. Decanting s separation density 1 masse 9 cm3 i 91ml volume. Distillali separating whines w physicalprocesses using filterpaper a funne boiling toevaporatemostvolatile liquid tothen condensateit andcollectit inseparate location alteration ofcomposition ofmatter rearranging ofatoms transformationofsubstancesintodiff substances chemical c ge ex rusting phase cha. Dissolutio combush physic chemical chan i changein composition phase change ex dissolution dis l. Physicalproperties 7 properties substances display wloutchangingcomposition odor taste. Meltingpoint propertiessubstances displaybychanging compostron via chemical change chemical rxn. Work actionof a force 1 rough a distance ork. Thermal energy energy a oviated 4 motionof an object associated ulposition or composition more w able associated w object temperature typeofkinetic energy greater movement relatedtomotionofparticles ighertemperature heat 7.
