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CHEM 1405 Practice Exam # 2 (Ch 3, 4)
Exam practice
Course
Introductory Chemistry I (CHEM 1405)
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CHEM 1405 Practice Exam # 2 (Ch 3, 4)
Name____________________________________ Section #___________________________
MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question.
- Which formula/name pair is incorrect? A) FeSO3 iron(II) sulfite B) FeS iron(II) sulfide C) Fe2(SO4)3 iron(III) sulfide D) FeSO4 iron(II) sulfate E) Fe2(SO3)3 iron(III) sulfite
1)
- Give the structure for sodium perchlorate. A) NaClO4 B) NaClO3 C) NaClO2 D) NaClO
2)
- The correct name for N2O5 is __________. A) nitrous oxide B) nitrogen pentoxide C) nitric oxide D) nitrogen oxide E) dinitrogen pentoxide
3)
- The formula of ammonium carbonate is __________. A) (NH3)2CO B) N2(CO3) C) NH4CO D) (NH3)2CO E) (NH4)2CO
4)
- The correct name for Mg(ClO3)2 is __________. A) magnesium perchlorate B) manganese perchlorate C) manganese chlorate D) magnesium chloroxide E) magnesium chlorate
5)
- The formula for zinc phosphate isZn3(PO4)2. What is the formula for cadmium arsenate? A) Cd2(AsO4) B) Cd3(AsO3) C) Cd4(AsO2) D) Cd2(AsO4) E) Cd3(AsO4)
6)
- The name of the ionic compound NH4CN is __________. A) ammonium carbonitride B) nitrogen hydrogen cyanate C) cyanonitride D) ammonium cyanide E) ammonium hydrogen cyanate
7)
- Which formula shown is incorrect for the name given? A) calcium carbonate: CaCO 3 B) magnesium nitrite: Mg(NO 2 ) 3 C) aluminum sulfate: Al2(SO4) D) sodium hydrogen carbonate: NaHCO 3 E) potassium hydroxide: KOH
8)
- What is the name of the molecular compound SF5? A) sulfur hexafluoride B) sulfur pentafluoride C) monosulfur tetrafluoride D) sulfur heptafluoride E) none of the above
9)
- What is the correct formula for the molecular compound heptaphosphorus octafluoride? A) P 7 F 8 B) P 7 F 6 C) P 6 F 7 D) P 5 F 8 E) none of the above
10)
- The ground state electron configuration for sodium is A) 1s2 2s2 2p6 3s2 3p4. B) 1s2 2s2 2p6 3s2 3p6 4s1. C) 1s2 2s2 2p6 3s1. D) 1s2 2s2 2p6.
11)
- An f sublevel can hold a maximum of A) 2 electrons. B) 10 electrons. C) 14 electrons. D) 6 electrons.
12)
- An element with electronic structure 1s2 2s2 2p4 is in which group of the periodic table? A) IV A B) II A C) VIII A D) VI A
13)
- The noble gases are a unique group of elements. They are recognized as unique due to the fact that they are A) named after Nobel prize winners. B) all gases at room temperature. C) extremely stable and unreactive. D) the most reactive member of their period.
14)
- How many orbitals are there in the seventh shell? A) 6 B) 21 C) 7 D) 49
15)
- Calculate the wavelength (in nm) of the blue light emitted by a mercury lamp with a frequency of
6 × 1014 Hz. A) 485 nm B) 206 nm C) 229 nm D) 675 nm E) 436 nm
23)
- Which of the following occur as the wavelength of a photon increases? A) the speed decreases B) the energy increases C) the frequency decreases D) Planckʹs constant decreases E) None of the above occur as the wavelength of a photon increases.
24)
- How many orbitals are contained in the third principal level ( n = 3) of a given atom? A) 3 B) 7 C) 5 D) 9 E) 18
25)
- In which orbital below would an electron (on average) be farthest from the nucleus? A) 3d B) 3s C) 4f D) 1s E) 2p
26)
- Give the ground state electron configuration for Se.
A) [Ar]3d104p B) [Ar]4s23d C) [Ar]4s23d104p D) [Ar]4s23d104p E) [Ar]4s24d104p
27)
- Give the ground state electron configuration for Pb.
A) [Xe]6s24f145d106p B) [Xe]6s24f145d106s26p C) [Xe]6s26p D) [Xe]6s25f146d106p E) [Xe]6s25d106p
28)
- Place the following elements in order of increasing atomic radius.
P Ba Cl
A) P < Cl < Ba B) Ba < P < Cl C) Cl < P < Ba D) Cl < Ba < P E) Ba < Cl < P
29)
- What period 3 element having the following ionization energies (all in kJ/mol)?
IE1 = 1012 IE2 = 1900 IE3= 2910 IE4= 4960 IE5= 6270 IE6 = 22,
A) Mg B) S C) Si D) P E) Cl
30)
Answer Key
Testname: CHEM 1405 PRACTICE EXAM # 2 (CH3, 4)
1) C
2) A
3) E
4) E
5) E
6) E
7) D
8) B
9) B
10) A
11) C
12) C
13) D
14) C
15) D
16) D
17) A
18) B
19) E
20) B
21) A
22) E
23) E
24) C
25) D
26) C
27) D
28) A
29) C
30) D
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CHEM 1405 Practice Exam # 2 (Ch 3, 4)
Course: Introductory Chemistry I (CHEM 1405)
218 Documents
Students shared 218 documents in this course
University: Dallas College
Was this document helpful?
CHEM1405PracticeExam#2(Ch3,4)
Name____________________________________Section#___________________________
MULTIPLECHOICE.Choosetheonealternativethatbestcompletesthestatementoranswersthequestion.
1) Whichformula/namepairisincorrect?
A) FeSO3iron(II)sulfite
B) FeS iron(II)sulfide
C) Fe2(SO4)3iron(III)sulfide
D) FeSO4iron(II)sulfate
E) Fe2(SO3)3iron(III)sulfite
1)
2) Givethestructureforsodiumperchlorate.
A) NaClO4B) NaClO3C) NaClO2D) NaClO
2)
3) ThecorrectnameforN2O5is__________.
A) nitrousoxide
B) nitrogenpentoxide
C) nitricoxide
D) nitrogenoxide
E) dinitrogenpentoxide
3)
4) Theformulaofammoniumcarbonateis__________.
A) (NH3)2CO4
B) N2(CO3)3
C) NH4CO2
D) (NH3)2CO3
E) (NH4)2CO3
4)
5) ThecorrectnameforMg(ClO3)2is__________.
A) magnesiumperchlorate
B) manganeseperchlorate
C) manganesechlorate
D) magnesiumchloroxide
E) magnesiumchlorate
5)
6) TheformulaforzincphosphateisZn3(PO4)2.Whatistheformulaforcadmiumarsenate?
A) Cd2(AsO4)4
B) Cd3(AsO3)4
C) Cd4(AsO2)3
D) Cd2(AsO4)3
E) Cd3(AsO4)2
6)
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