Chem../103../exam../1../Ch../1-3../Prelec/hw
A../uniform../combination../of../two../or../more../pure../substances../can../be../classifi
ed../as../_____.../-../correct../answer../a../homogeneous../mixture
Which../of../these../pure../substances../is../an../element?
-../C12H22O11../(sucrose,../table../sugar)
-../O2
-../CH4../(methane,../the../primary../component../of../natural../gas)
-../NH3../(ammonia,../a../component../of../fertilizer)../-../correct../answer../O2
Based../on../the../organization../of../the../periodic../table,../periods../_____.../-
../correct../answer../are../the../horizontal../rows
To../which../group../and../period../does../potassium../belong?../-
../correct../answer../1A,../4
In../any../measurement,../the../digits../known../with../certainty../plus../one../estimate
d../digit../are../called../_____.../-../correct../answer../significant../digits
,The../average../diameter../of../a../human../cell../is../0.000050../meters.../How../many../
significant../figures../does../this../measurement../contain?../-../correct../answer../2
Cycling../at../a../pace../of../10-
12../miles../per../hour../burns../40../calories../per../mile.../How../many../miles../would../
a../cyclist../have../to../ride../at../this../pace../to../burn../120../calories?../-
../correct../answer../3../miles
A../doctor../prescribes../2../tablets../of../acetaminophen../every../4../hours../for../a../fev
er.../Acetaminophen../is../available../in../325mg325mg../tablets.../How../many../mi
lligrams../of../acetaminophen../does../the../patient../take../with../each../dose?../-
../correct../answer../650../mg
On../a../spring../break../road../trip,../3../friends../drive../480../miles../to../the../beach.../If../
their../average../speed../is../60../miles../per../hour,../how../many../hours../did../it../take../t
hem../to../reach../their../destination?../-../correct../answer../8../hours
Density../is../defined../as../the../comparative../ratio../of../a../substance's../_____.../-
../correct../answer../mass../to../volume
Which../two../states../of../matter../have../a../definite../volume?../-
../correct../answer../Solid../and../liquid
A../Calorie../is../equivalent../to../1000../calories../-../correct../answer../True
, Which../of../the../following../statements../is../representative../of../a../chemical../reac
tion?
Slicing../the../cake../prior../to../serving../it
Eating../the../cake
Mixing../flour,../sugar,../and../salt../to../make../a../cake
Melting../butter../to../put../in../the../cake../batter../-
../correct../answer../Eating../the../cake
What../is../the../coefficient../of../HClO4../when../the../following../equation../is../bala
nced../with../smallest../whole../numbers?Cl2O7../+../H2O../→../HClO4../-
../correct../answer../2
You../happen../to../be../visiting../Northern../California../and../you../are../driving../by../
Suisun../Bay,../a../notorious../graveyard../for../old../ships.../You../notice../that../all../of.
./these../ships../appear../to../be../rusting../away.../Which../of../the../following../statem
ents../is../true?
The../rusting../of../the../metal../is../neither../a../chemical../change../nor../a../physical../c
hange.
The../rusting../of../the../metal../is../a../chemical../change.
The../rusting../of../the../metal../is../a../physical../change.
A../uniform../combination../of../two../or../more../pure../substances../can../be../classifi
ed../as../_____.../-../correct../answer../a../homogeneous../mixture
Which../of../these../pure../substances../is../an../element?
-../C12H22O11../(sucrose,../table../sugar)
-../O2
-../CH4../(methane,../the../primary../component../of../natural../gas)
-../NH3../(ammonia,../a../component../of../fertilizer)../-../correct../answer../O2
Based../on../the../organization../of../the../periodic../table,../periods../_____.../-
../correct../answer../are../the../horizontal../rows
To../which../group../and../period../does../potassium../belong?../-
../correct../answer../1A,../4
In../any../measurement,../the../digits../known../with../certainty../plus../one../estimate
d../digit../are../called../_____.../-../correct../answer../significant../digits
,The../average../diameter../of../a../human../cell../is../0.000050../meters.../How../many../
significant../figures../does../this../measurement../contain?../-../correct../answer../2
Cycling../at../a../pace../of../10-
12../miles../per../hour../burns../40../calories../per../mile.../How../many../miles../would../
a../cyclist../have../to../ride../at../this../pace../to../burn../120../calories?../-
../correct../answer../3../miles
A../doctor../prescribes../2../tablets../of../acetaminophen../every../4../hours../for../a../fev
er.../Acetaminophen../is../available../in../325mg325mg../tablets.../How../many../mi
lligrams../of../acetaminophen../does../the../patient../take../with../each../dose?../-
../correct../answer../650../mg
On../a../spring../break../road../trip,../3../friends../drive../480../miles../to../the../beach.../If../
their../average../speed../is../60../miles../per../hour,../how../many../hours../did../it../take../t
hem../to../reach../their../destination?../-../correct../answer../8../hours
Density../is../defined../as../the../comparative../ratio../of../a../substance's../_____.../-
../correct../answer../mass../to../volume
Which../two../states../of../matter../have../a../definite../volume?../-
../correct../answer../Solid../and../liquid
A../Calorie../is../equivalent../to../1000../calories../-../correct../answer../True
, Which../of../the../following../statements../is../representative../of../a../chemical../reac
tion?
Slicing../the../cake../prior../to../serving../it
Eating../the../cake
Mixing../flour,../sugar,../and../salt../to../make../a../cake
Melting../butter../to../put../in../the../cake../batter../-
../correct../answer../Eating../the../cake
What../is../the../coefficient../of../HClO4../when../the../following../equation../is../bala
nced../with../smallest../whole../numbers?Cl2O7../+../H2O../→../HClO4../-
../correct../answer../2
You../happen../to../be../visiting../Northern../California../and../you../are../driving../by../
Suisun../Bay,../a../notorious../graveyard../for../old../ships.../You../notice../that../all../of.
./these../ships../appear../to../be../rusting../away.../Which../of../the../following../statem
ents../is../true?
The../rusting../of../the../metal../is../neither../a../chemical../change../nor../a../physical../c
hange.
The../rusting../of../the../metal../is../a../chemical../change.
The../rusting../of../the../metal../is../a../physical../change.
