ECPI 2022 - BIO 111 - CH2 QUESTIONS WITH ALL ANSWERS.

ECPI 2022 - BIO 111 - CH2 QUESTIONS
WITH ALL ANSWERS




Matter v- v vcorrect vanswer- v vAnything vthat vtakes vup vspace vand vhas vmass v______
vis vcomposed vof velements v. vSolids v, vliquids v, vand vgases vare vmatter v.


Mass v- v vcorrect vanswer- v vAmount vof vmatter vpresent

Weight v- v vcorrect vanswer- v vHeaviness vdue vto vgravitational vpull von vmass. v(On
vearth)


Chemistry v- v vcorrect vanswer- v vStudies vcomposition v, vproperties v, vinteraction vof
vmatter


Biochemistry v- v vcorrect vanswer- v vBiological vchemistry v, vwhich vstudies vphysiological
vprocess vand vdisease


Elements v- v vcorrect vanswer- v vSimplest vtypes vof vmatter vwith vcertain vchemical
vproperties v. vThere vare v92 vnaturally voccurring v___________ v.


Compounds v- v vcorrect vanswer- v vChemical vcombinations vof vdifferent velements

Atoms v- v vcorrect vanswer- v vSmallest vparticles vof van velement vthat vhave vproperties
vof vthat velement


Atoms v- v vcorrect vanswer- v vComposed vof vsubatomic vparticles

, Protons v- v vcorrect vanswer- v v( vequals vthe vatomic vnumbers v) vLarge vparticles v; vcarry
va vsingle vpositive vcharge v( v+ v) vFound vin vthe vnucleus v.


Neutrons v- v vcorrect vanswer- v vLarge vparticles v; vcarry vno velectrical vcharge v/ vneutral
vcharge


Electrons v- v vcorrect vanswer- v vSmall vparticles v; vcarry va vsingle vnegative vcharge v...
vfound vin vthe vorbital vregion v/ vshell varound vthe vnucleus


Octet vrule v- v vcorrect vanswer- v v(2-8-8)

Atomic vNumber v- v vcorrect vanswer- v vNumber vof vprotons vin vthe vnucleus vof van vatom
vof va vspecific velement


Mass vNumber v- v vcorrect vanswer- v vThe vnumber vof vprotons vplus vthe vnumber vof
vneutrons vin vone vatom, vElectrons vcontribute vvery vlittle vto vthe v_____ vof vthe vatom
vbecause vthey vare vso vlight v.


Molecule v- v vcorrect vanswer- v vParticle vformed vwhen vtwo vor vmore vatoms vchemically
vcombine


Compound v- v vcorrect vanswer- v vParticle vformed vwhen vtwo vor vmore vatoms vof
vdifferent velements vchemically vcombine


Molecular vformulas v- v vcorrect vanswer- v vDepict vthe velements vpresent vand vthe
vnumber vof veach vatom vpresent vin vthe vmolecule


ALL vCOMPOUNDS vARE vMOLECULES v, vBUT vNOT vALL vMOLECULES vARE
vCOMPOUNDS v- v vcorrect vanswer- v vALL v_____ vARE v_____ v, vBUT vNOT vALL
v_____ vARE v_____


Chemical vbonds v- v vcorrect vanswer- v vForm vwhen vatoms vcombine vwith vother vatoms
v. vThey vresult vfrom vinteractions vbetween vthe velectrons vof vthe vatoms v.


Electron vShells v- v vcorrect vanswer- v vThe vfirst vshell vcan vhold vup vto v2 velectrons v.
vThe vsecond vshell vcan vhold vup vto v8 velectrons v. vThe vthird vshell vcan vhold vup vto v8
velectrons v.


Valence v- v vcorrect vanswer- v vThe voutermost venergy vshell vof van vatom, velectrons
vinvolved vdetermine vif vatom vwill vreact vwith vother vatoms vto vform vchemical vbonds


Ion v- v vcorrect vanswer- v vAn velectrically vcharged vatom vor vmolecule vthat vgains vor
vloses velectrons vto vbecome vstable v/ vto vsatisfy vthe voctet vrule


Cation v- v vcorrect vanswer- v vA vpositively vcharged vion v, vformed vwhen van vatom vloses
velectrons