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CHEM 1100 FINAL EXAM QUESTIONS WITH ANSWERS
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CHEM 1100 FINAL EXAM QUESTIONS WITH ANSWERS
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CHEM 1100 FINAL EXAM QUESTIONSWITH ANSWERS
r- r✔✔Anything rthat rhas rmass rand rtakes rup rspace.
Pure rSubstance r- r✔✔A rsingle rchemical
one rkind rof rmatter
Unique rset rof rphysical rand rchemical rproperties
Cannot rbe rseparated rinto rparts rby ra rphysical rchange.
Mixture r- r✔✔A rsample rof rmatter rwhich rcontains rtwo ror rmore rchemicals
Can rbe rseparated rinto rparts rby rphysical rchanges.
Solution r- r✔✔A rHomogeneous rMixture
Homogeneous r- r✔✔A rsample rwhich rhas ra runiform rappearance rand rcomposition
rthroughout.
Heterogeneous r- r✔✔Different rPhases
Usually rVisible
Element r- r✔✔A rpure rsubstance rwhich rcannot rbe rseparated rinto rother rstable rpure
rsubstances.
Compound r- r✔✔A rpure rsubstance rwhich rcan rbe rdecomposed rby ra rchemical rchange
rinto r2 ror rmore rother rpure rsubstances.
Atom r- r✔✔The rsmallest runit rparticle rof ran relement.
Physical rProperty r- r✔✔Can rbe rdescribed rby rsenses. r
A rmeasurable rproperty.
Chemical rProperty r- r✔✔properties rdefined rby rthe rtypes rof rchemical rchange
rpossible.
Physical rChange r- r✔✔New rform rof rold rsubstance r
No rnew rsubstance rformed
Law rof rMultiple rProportions r- r✔✔When r2 relements rcombine, rit ris ralways rin ra rsimple
rratio rof rwhole rnumbers.
, Law rof rConservation rof rMass r- r✔✔In ra rchemical rchange, rmass ris rconserved. rIt ris
rneither rcreated ror rdestroyed.
Law rof rConservation rof rEnergy r- r✔✔In ra rchemical rchange, renergy ris rconserved. rIt
ris rneither rcreated ror rdestroyed. r
Energy rlost rin ron rform ris ralways rgained rin ranother rform.
Chemical rChange r- r✔✔Old rsubstances rdestroyed
New rsubstance rformed
H r- r✔✔Hydrogen
He r- r✔✔Helium
Li r- r✔✔Lithium
Be r- r✔✔Beryllium
B r- r✔✔Boron
C r- r✔✔Carbon
N r- r✔✔Nitrogen
O r- r✔✔Oxygen
F r- r✔✔Fluorine
Ne r- r✔✔Neon
Na r- r✔✔Sodium
Mg r- r✔✔Magnesium
Al r- r✔✔Aluminum
Si r- r✔✔Silicon
P r- r✔✔Phosphorus
S r- r✔✔Sulfur
Cl r- r✔✔Chlorine
Ar r- r✔✔Argon
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