nCHEM 1030 Exam 1
n n n
1. Chemistry:n thenstudynofnmatternandnthenchangesnthatnmatternundergo
2. Matter:nanythingnthatnhasnmassnandnoccupiesnspace
3. Atom:nSmallestnparticlenofnannelementnthatnretainsnthe
chemicalncharacteristicsnofnthatnelement
4. Element:nSubstancenthatncannotnbenseparatednintonsimplernsubstancesnbynanchemicalnprocess.nAnnelementncon
sistsnofnonlynonenkindnofnatom.
5. Compound:nAncompoundnisnanpurensubstancenmadenupnofntwonornmorenditterentnatomntypesnheldntogethernbynanc
hemicalnbond
6. Chemicalnbond:nAnchemicalnbondnisnanforcenthatnholdsnatomsnt
ogether
7. Molecule:n Groupsnofnatomsnwithnnoncharge
8. Ions:nAtomsnthatnhavenanpositivenornnegativencharge
9. Solid:n Hasndefinitenshapenandndefinitenvolume
10. Liquid:n Hasnindefinitenshapenandndefinitenvolume
11. Gas:n Hasnindefinitenshapenandnindefinitenvolume
12. Sublimation:nThentransitionnofnansolidntonangas
13. Deposition:nThentransitionnofnangasntonansolid
14. Physicaln properties:n Propertiesnthatncannbenmeasurednornobservednwithoutnchanging
thensubstancen(meltingnpoint,ndensity)
15. Physicalnchange:nInnwhichnthenstatenofnmatternchanges,nbutnthenidentitynofnthen
matterndoesnnotnchange
16. Chemicalnproperties:nPropertynthatndescribesnhownansubstancenwillnreact;nthensubstancenwillnchangenintonan
newnsubstancenfromnthisnpropertyn(oxidation,nflammability)
17. Chemicalnchange:nisnonenthatnresultsninnanchangenofncomposition,nsonthatnthenoriginalns
ubstancesnnonlongernexist
18. HomogeneousnMixture:nmixturenwherenallnthencomponentsnarenuniformlyndistributednandnthenappear-
nancenisnconsistentnthroughoutnthensample
19. Heterogeneousnmixture:nanmixturenwherenthencompositionnisnnotnuniformnandnthenappearancenmaynbenin
nn
, consistent
20. 5,n4,n3:nHownmanynsignificantndigitsnareninnthesennumbersn-n12035,n0.01450,n1.25x10^-6?
21. kilogramn(kg):nSInunitnfornmass
22. metern(m):nSInunitnfornlength
nn
n n n
1. Chemistry:n thenstudynofnmatternandnthenchangesnthatnmatternundergo
2. Matter:nanythingnthatnhasnmassnandnoccupiesnspace
3. Atom:nSmallestnparticlenofnannelementnthatnretainsnthe
chemicalncharacteristicsnofnthatnelement
4. Element:nSubstancenthatncannotnbenseparatednintonsimplernsubstancesnbynanchemicalnprocess.nAnnelementncon
sistsnofnonlynonenkindnofnatom.
5. Compound:nAncompoundnisnanpurensubstancenmadenupnofntwonornmorenditterentnatomntypesnheldntogethernbynanc
hemicalnbond
6. Chemicalnbond:nAnchemicalnbondnisnanforcenthatnholdsnatomsnt
ogether
7. Molecule:n Groupsnofnatomsnwithnnoncharge
8. Ions:nAtomsnthatnhavenanpositivenornnegativencharge
9. Solid:n Hasndefinitenshapenandndefinitenvolume
10. Liquid:n Hasnindefinitenshapenandndefinitenvolume
11. Gas:n Hasnindefinitenshapenandnindefinitenvolume
12. Sublimation:nThentransitionnofnansolidntonangas
13. Deposition:nThentransitionnofnangasntonansolid
14. Physicaln properties:n Propertiesnthatncannbenmeasurednornobservednwithoutnchanging
thensubstancen(meltingnpoint,ndensity)
15. Physicalnchange:nInnwhichnthenstatenofnmatternchanges,nbutnthenidentitynofnthen
matterndoesnnotnchange
16. Chemicalnproperties:nPropertynthatndescribesnhownansubstancenwillnreact;nthensubstancenwillnchangenintonan
newnsubstancenfromnthisnpropertyn(oxidation,nflammability)
17. Chemicalnchange:nisnonenthatnresultsninnanchangenofncomposition,nsonthatnthenoriginalns
ubstancesnnonlongernexist
18. HomogeneousnMixture:nmixturenwherenallnthencomponentsnarenuniformlyndistributednandnthenappear-
nancenisnconsistentnthroughoutnthensample
19. Heterogeneousnmixture:nanmixturenwherenthencompositionnisnnotnuniformnandnthenappearancenmaynbenin
nn
, consistent
20. 5,n4,n3:nHownmanynsignificantndigitsnareninnthesennumbersn-n12035,n0.01450,n1.25x10^-6?
21. kilogramn(kg):nSInunitnfornmass
22. metern(m):nSInunitnfornlength
nn
