Chemistry 101 - Exam -1 WITH CORECT ANSWERS

Chemistry 101 - Exam #1 WITH CORECT
ANSWERS
KB=B°CB+B273.15B-BCORRECTBANSWERB-ConversionBtoBkelvinBfromBcelcius



Exa-B-BCORRECTBANSWERB-Symbol:BE;B10¹⁸



Peta-B-BCORRECTBANSWERB-Symbol:BP;B10¹⁵



Tera-B-BCORRECTBANSWERB-Symbol:BT;B10¹²



Giga-B-BCORRECTBANSWERB-Symbol:BG;B10⁹



Mega-B-BCORRECTBANSWERB-Symbol:BM;B10⁶



Kilo-B-BCORRECTBANSWERB-Symbol:Bk;B10³



Deci-B-BCORRECTBANSWERB-Symbol:Bd;B10⁻¹



Centi-B-BCORRECTBANSWERB-Symbol:Bc;B10⁻²



Milli-B-BCORRECTBANSWERB-Symbol:Bm;B10⁻³



Micro-B-BCORRECTBANSWERB-Symbol:Bmew;B10⁻⁶



Nano-B-BCORRECTBANSWERB-Symbol:Bn;B10⁻⁹

, Pico-B-BCORRECTBANSWERB-Symbol:Bp;B10⁻¹²



Femto-B-BCORRECTBANSWERB-Symbol:Bf;B10⁻¹⁵



Atto-B-BCORRECTBANSWERB-Symbol:Ba;B10⁻¹⁸



SignificantBFiguresBRulesB-BCORRECTBANSWERB-
1)BAllBnonzeroBdigitsBareBsignificantB(notBtrue;BcanBbeBbrokenBupBintoBsubatmoicBparticlesB[protons
,Bneutrons,B&Belectrons])

2)BInteriorBzeroesB(zeroesBbetweenB2Bnon-
zeroBdigits)BareBsignificantB(notBtrueBbecauseBofBisotopes)

3)BLeadingBzeroesB(zeroesBtoBtheBleftBofBtheBfirstBnon-zeroBdigit)BareBnotBsignificant

4)BTrailingBzeroesB(zeroesBatBtheBendBofBaBnumber)BareBcategorizedBasBfollows:

-TrailingBzeroesBafterBaBdecimalBpointBareBalwaysBsignificant

-TrailingBzeroesBbeforeBaBdecimalBpointB(andBafterBaBnon-zeroBnumber)BareBalwaysBsignificant

-
TrailingBzeroesBbeforeBanBimpliedBdecimalBpointBareBambiguousBandBshouldBbeBavoidedBbyBusingBs
cientificBnotation



Dalton'sBAtomicBTheoryB-BCORRECTBANSWERB-
1)BEachBelementBisBcomposedBofBtiny,BindestructibleBparticlesBcalledBatoms

2)BAllBstomsBofBaBgivenBelementBhaveBtheBsameBmassBandBotherBpropertiesBthatBdistinguishBthemBf
romBtheBatomsBofBotherBelements

3)BAtomsBcombineBinBsimple,Bwhole-numberBratiosBtoBformBcompounds

4)BAtomsBofBoneBelementBcannotBchangeBintoBatomsBofBanotherBelement.BInBaBchemicalBreaction,B
atomsBonlyBchangeBtheBwayBthatBtheyBareBboundBtogetherBwithBotherBatoms