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CHEM |\ 212 |\TEST |\ 1 |\QUESTIONS |\WITH |\
ANSWERS
An |\ice |\cube |\melting |\on |\the |\counter |\of |\a |\warm |\room |\is |\an |\example |\of |\a: a) |\physical |\property |\b) |\physical |\change c) |\chemical |\property |\d) |\chemical |\change |- |\CORRECT |\ANSWERS |\✔✔B. |\physical |\change An |\eggplant |\has |\stored |\up |\energy |\which |\I |\have |\the |\potential |\to |
access |\if |\I |\eat |\it. |\This |\is a: a) |\physical |\property |\b) |\physical |\change c) |\chemical |\property |\d) |\chemical |\change |- |\CORRECT |\ANSWERS |\✔✔c. |\chemical |\property Which |\statement |\concerning |\laboratory |\safety |\is |\true: a) |\The |\maid |\will |\come |\to |\clean |\your |\workbench |\every |\afternoon. |
Leave |\it |\as |\messy |\as |\you want. b) |\If |\you |\want |\to |\leave |\early, |\start |\the |\lab |\experiment |\before |
everyone |\else |\shows |\up.
c) |\It's |\fine |\to |\snack, |\chew |\gum, |\or |\have |\beverages |\in |\the |\lab |
classroom. d) |\If |\chemicals, |\heat, |\or |\glassware |\will |\be |\used |\in |\the |\lab, |\safety |
glasses |\must |\be |\worn. |- |\CORRECT |\ANSWERS |\✔✔d) |\If |\chemicals, |
heat, |\or |\glassware |\will |\be |\used |\in |\the |\lab, |\safety |\glasses |\must |\be |
worn 1 |\gram |\is |\equal |\to |\exactly: a) |\ 1 |\milligram |\b) |\ 100 |\milligrams |\c) |\0.01 |\milligrams |\d) |\ 1000 |\milligrams |- |\CORRECT |\ANSWERS |\✔✔d) |\ 1000 |\milligrams The |\weight |\of |\an |\object |\is |\different |\from |\the |\mass |\due |\to |\the |
inclusion |\of: a) |\size |
b) |\gravity |
c) |\volume |
d) |\density |- |\CORRECT |\ANSWERS |\✔✔b) |\gravity How |\many |\significant |\figures |\will |\the |\number |\0.002 |\have? a) |\ 1 |\b) |\ 2 |\c) |\ 3 |\d) |\ 4 |- |\CORRECT |\ANSWERS |\✔✔a) |\ 1
a) |\atom |\b) |\molecule |\c) |\ion |\d) |\isotope |- |\CORRECT |\ANSWERS |\✔✔a) |
atom Which |\is |\not |\one |\of |\the |\diatomic |\elements? a) |\fluorine |\b) |\carbon |\c) |\nitrogen |\d) |\hydrogen |- |\CORRECT |\ANSWERS |
✔✔b) |\carbon Which |\choice |\is |\a |\pure |\substance? a) |\tap |\water |\b) |\air |\c) |\milk |\d) |\copper |- |\CORRECT |\ANSWERS |\✔✔d) |
copper Which |\is |\a |\homogeneous |\mixture? a) |\gold |\b) |\a |\bowl |\of |\gumbo c) |\the |\liquid |\inside |\a |\cup |\of |\black |\coffee |\d) |\a |\club |\sandwich |- |
CORRECT |\ANSWERS |\✔✔c) |\the |\liquid |\inside |\a |\cup |\of |\black |\coffee An |\atom |\with |\ 19 |\protons |\in |\it |\is |\an |\atom |\of: a) |\potassium |\b) |\kanium |\c) |\phosphorous |\d) |\fluorine |- |\CORRECT |
ANSWERS |\✔✔a) |\potassium How |\many |\electrons |\have |\been |\gained |\or |\lost |\to |\form |\Al+3? a) |\ 3 |\gained |\b) |\ 1 |\gained |\c) |\ 3 |\lost |\d) |\ 6 |\lost |- |\CORRECT |\ANSWERS |
✔✔c) |\ 3 |\lost
Using |\the |\atomic |\mass |\of |\boron, |\what |\is |\most |\likely |\the |\most |
common |\isotope? a) |- |\CORRECT |\ANSWERS |\✔✔ Which |\element |\would |\be |\a |\good |\conductor |\of |\heat |\and |\electricity? a) |\silicon |\b) |\carbon |\c) |\aluminum |\d) |\hydrogen |- |\CORRECT |\ANSWERS |
✔✔c) |\aluminum Using |\significant |\figures |\rules, |\what |\is |\the |\correct |\answer? 0.333 |+ |\0.22 |= a) |\0.553 |\b) |\0.5530 |\c) |\0.55 |\d) |\ 55 |- |\CORRECT |\ANSWERS |\✔✔c) |\0. Read |\the |\paragraph |\below: Lenny |\arrives |\at |\the |\airport |\at |\8:30 |\AM |\one |\Tuesday. |\He |\is |\carrying |\three |\large |\suitcases, |\but does |\not |\let |\anyone |\help |\him |\with |\his |\bags. |\He |\checks |\in |\and |
passes |\through |\security |\without any |\problems. |\He |\sits |\by |\his |\gate |\for |\two |\hours, |\during |\which |\he |
drinks |\two |\cups |\of |\coffee without |\any |\sugar. |\Suddenly |\at |\11:00, |\he |\stands |\up |\and |\runs |\out |\of |\the |\airport |\completely. |\He gets |\into |\a |\taxi |\and |\drives |\away.
a) |\20,000. |\inches |= |_____________________ |\meters |- |\CORRECT |\ANSWERS |\✔✔ b) |\ 445 |\cups |= |_________________________gallons |- |\CORRECT |\ANSWERS |
✔✔ c) |\8.92 |\x |\ 1010 |\grams |= |_____________________ |\kilograms |- |\CORRECT |
ANSWERS |\✔✔ H |- |\CORRECT |\ANSWERS |\✔✔Hydrogen |\Atomic |# He |- |\CORRECT |\ANSWERS |\✔✔Helium |\Atomic |# |\ 2 Li |- |\CORRECT |\ANSWERS |\✔✔Lithium |\Atomic |# |\ 3 Be |- |\CORRECT |\ANSWERS |\✔✔Beryllium |\Atomic |# |\ 4 B |- |\CORRECT |\ANSWERS |\✔✔Boron |\Atomic |# |\ 5 C |- |\CORRECT |\ANSWERS |\✔✔Carbon |\Atomic |# |\ 6 N |- |\CORRECT |\ANSWERS |\✔✔Nitrogen |\Atomic |# |\ 7
