Test Bank for Chemistry 15th edition by Steven S. Zumdahl, Susan A. Zumdahl Chapter 1-22 Complete

Chemistry Bank, Grade 10, Second semester, 2018
w w w w w w




1. Thewfollowingwtablewgiveswthewmeltingwpointswofwvariouswhydrides:

Hydride Meltingwpointw(0C)
HI -50
NH3 -78
H2S -83
CH4 -184
Inwwhichwofwthesewhydrideswdoeswhydrogenwbondingwoccur?

a. HIwonly
b. NH3wonlyw
c. HIwandwNH3wonly
d. HI,wNH3wandwH2S

2. Referwtowthewlistwofwsubstanceswbelow:
HCl,wCl2,wH2O,wNH3,wN2,wHF
Selectwthewtruewstatementwfromwthewlistwbelow:

a. NH3wiswawnon-polarwmolecule
b. ThewmeltingwpointwofwNH3wwillwbewhigherwthanwforwCl2w
c. Ion-dipolewforceswexistwbetweenwmoleculeswofwHF
d. AtwroomwtemperaturewN2wiswusuallywawliquid

3. Thewrespectivewboilingwpointswforwfourwchemicalwsubstanceswarewgivenwbelow:

Hydrogenwsulphidew-
60‫ﹾ‬CwAmmoniaw-
33‫ﹾ‬CwHydrogenwfluoridew
20‫ﹾ‬CwWaterw100‫ﹾ‬C

a. Whichwonewofwthewsubstanceswexhibitswthewstrongestwforceswofwattractionwbetweenwitswmoleculeswinwthewliquidwstate?

a. Hydrogenwsulphide
b. Ammonia
c. Hydrogenwfluoride
d. Water

b. WhichwonewofwthesewsubstanceswhaswstrongwLDF?

a. Hydrogenwsulphide
b. Ammonia
c. Water
d. None

4. Waterwcanwbewformedwfromwthewstoichiometricwreactionwofwhydrogenwwithwoxygenw:w2H2w(g)w +wO2w(g)w 2H2Ow(g)

Awcompletewreactionwofw5.0wgwofwO2wwithwexcesswhydrogenwproducesw gwofwH2O.

a. 5.6
b. 2.3wxw102
c. 2.8
d. 0.31
e. 11

1

, Chemistry Bank, Grade 10, Second semester, 2018
w w w w w w




5. Underwappropriatewconditions,wnitrogenwandwhydrogenwundergowawcombinationwreactionwtowyieldwammoni
a:wN2w(g)w+w3H2w(g)w→w 2NH3w(g),w Aw7.1-gwsamplewofwN2wrequiresw gwofwH2wforwcompletewreaction.

a. 0.76
b. 1.5
c. 0.51
d. 17.2
e. 1.2

6. GeF3HwiswformedwfromwGeH4wandwGeF4winwthewcombinationwreaction:wGeH4w +w 3GeF4w →w4GeF3H
Ifwthewreactionwyieldwisw92.6%,whowwmanywmoleswofwGeF4warewneededwtowproducew8.00wmolewofwGeF3H?

a. 6.48
b. 2.78
c. 5.56
d. 3.24
e. 2.16

7. Silverwnitratewandwaluminumwchloridewreactwwithweachwotherwbywexchangingwanions:
3AgNO3w +w AlCl3w →w Al(NO3)3w +w 3AgCl
WhatwmasswinwgramswofwAgClwiswproducedwwhenw4.22wgwofwAgNO3wreactwwithw7.73wgwofwAlCl3?

a. 3.56w
b. 17.6
c. 11.9
d. 4.22
e. 24

8. Aw3.82-
gwsamplewofwmagnesiumwnitridewiswreactedwwithw7.73wgwofwwater,waccordingwtowthewfollowingwequationwMg3N2
+w 3H2Ow →w 2NH3w +w 3MgO
ThewyieldwofwMgOwisw3.60wg.wWhatwiswthewpercentwyieldwinwthewreaction?

a. 78.8w
b. 46.6
c. 94.5
d. 49.4
e. 99

9. Aluminumwchloridewandwbubbleswofwhydrogenwgaswarewproducedwwhenwmetallicwaluminumwiswplaced
winwhydrochloricwacid.w Whatwiswthewbalancedwequationwforwthiswreaction?




a. Hw+wAlClw→wAlw+wHCl
b. 2Alw+w6HClw→w2AlCl3w+w3H2w
c. Alw+wHCl3w→wAlCl3w+wH
d. Alw+w2HClw→wAlCl2w+wH2
e. H2w+wAlCl3w→wAlw+w2HCl




2

, Chemistry Bank, Grade 10, Second semester, 2018
w w w w w w




10. Whenwthewequation,wFew+wCl2w→wFeCl3,wiswbalanced,wwhatwiswthewcoefficientwforwCl2?

a. 1
b. 2
c. 3w
d. 4
e. 0.5

11. Chemicalwreactionsw…………….
a. occurwonlywinwlivingworganisms.
b. createwandwdestroywatoms.
c. onlywoccurwoutsidewlivingworganisms.
d. producewnewwsubstances.
e. arewaccompaniedwwithwdecreasingwinwthewamountswofwproductswandwreactants.

12. WhichwofwthewfollowingwiswNOTwawtruewstatementwconcerningwwhatwhappenswinwallwchemicalwreactions?
a. Thewwayswinwwhichwatomswarewjoinedwtogetherwarewchanged.
b. Newwatomswarewformedwaswproducts.w
c. Thewstartingwmaterialswarewnamedwreactants.
d. Thewbondswofwthewreactantswarewbrokenwandwnewwbondswofwthewproductswarewformed.
e. Inwawwordwequationwrepresentingwawchemicalwreaction,wthewreactantswarewwrittenwonwthewleftwandwthewproductswon
wthewright.




13. Chemicalwequationw……………….

a. describewchemicalwreactions.w
b. showwhowwtowwritewchemicalwformulas.
c. givewdirectionswforwnamingwchemicalwcompounds.
d. describewonlywbiologicalwchanges.

14. Chemicalwequationswdescribew………………..

a. nuclearwreactions
b. electrochemicalw processes
c. chemicalwreactions
d. biologicalwreactions
e. allwthewabove

15. Chemicalwequationswmustwbewbalancedwtowsatisfywthew……………..

a. lawwofwdefinitewproportions
b. lawwofwmultiplewproportions
c. lawwofwconservationwofwmassw
d. principlewofwAvogadro

16. Inweverywbalancedwchemicalwequation,weachwsidewofwthewequationwhaswthewsamewnumberwofw…………….

a. atomsw
b. molecules
c. moles
d. coefficients
3

, Chemistry Bank, Grade 10, Second semester, 2018
w w w w w w




17. Thewdoublewarrowwsymbolwindicatesw…………….

a. thatwheatwmustwbewapplied
b. anwincompletewcombustionwreaction
c. thatwawgaswiswformedwbywthewreaction
d. thatwthewreactionwiswreversible

18. Thewreaction,w2Few+w3Cl2w→w 2FeCl3,wiswanwexamplewofwwhichwtypewofwreaction?

a. REDOXw-wcombustionwreaction
b. REDOXw-wdisproportionationwreaction
c. REDOXw-wcombinationwreactionw
d. PrecipitationwReaction
e. Acid/BasewReaction

19. ThewequationwMg(s)w+w2HCl(aq)w→wMgCl2(aq)w+wH2(g)wiswanwexamplewofwwhichwtypewofwreaction?

a. REDOXwreactionw
b. Acid/Basewreaction
c. REDOXw-wdisproportionationwreaction
d. Precipitationwreaction

20. WhichwofwthewfollowingwiswNOTwtruewconcerningwthewdecompositionwofwawsimplewbinarywcompound?

a. Thewproductswarewunpredictable.w
b. Thewproductswarewthewconstituentwelements.
c. Thewreactantwiswawsinglewsubstance.
d. Thewreactantwcouldwbewanwionicworwawmolecularwcompound.
e. Energywiswusuallywrequired.

21. WhichwofwthewfollowingwiswTRUEwregardingwawprecipitationwreaction?

a. Bothwproductswmustwbewsolublewinwwater
b. Atwleastwonewofwthewproductswwillwbewinsolublewinwwater
c. Spectatorwionswarewalwayswincludedwinwthewreaction
d. Electronswarewgainedwandwlost
e. H+wionswarewtransferredwfromwonewmoleculewtowanother

22. Whatwiswthewdrivingwforcewinwthewfollowingwreaction?
Ni(NO3)2(aq)w+wK2S(aq)w→wNiSw+w2KNO3(aq)

a. Awgaswiswformed.
b. Awprecipitatewiswformed.w
c. Ionicwcompoundswarewreactants.
d. Ionicwcompoundswarewproducts.
e. Heatwiswrequired.




4