|
|
|
101 E2 practice mc.doc
101_E2_practice_mc.doc
Showing 1-3 out of 5
101 E2 practice mc.doc-E2 practice mc Name ...
101_E2_practice_mc.doc-E2 practice mc Name___________________________________ MULTIPLE CHOICE.
101 E2 practice mc.doc-E2 practice ...
101_E2_practice_mc.doc-E2 practice mc Name___________________________________ MULTIPLE CHOICE.
Page 1
105 E2 practice mc
Name___________________________________
MULTIPLE CHOICE.
Choose the one alternative that best completes the statement
or answers the question.
1) A double bond consists of __________ pairs of electrons shared between two atoms.
A) 1
B) 2
C) 3
D) 4
E) 6
2) The electron
-
domain geometry of __________ is tetrahedral.
A) CBr
4
B) PH
3
C) XeF
4
D) CCl
2
Br
2
E) all of the above except XeF
4
3) The central atom in __________ violates the octet rule.
A) BF
3
B) CF
4
C) AsF
3
D) SeF
2
E) NH
3
4) In ionic bond formation, the energy that holds ions together ________ as the
magnitude of the ion charges _______ and the radii __________.
A) increases, increase, decrease
B) increases, increase, increase
C) increases, decrease, increase
D) increases, decrease, decrease
E) decreases, increase, increase
5) What is the coefficient of H
2
O when the following equation is completed and
balanced?
Ba (s)
+
H
2
O (l)
→
Ba(OH)
2
(s) + H
2
(g)
A) 1
B) 2
C) 3
D) 5
E) Ba(s) does not react with H
2
O (l).
6) 10.0 grams of argon and 20.0 grams of neon are placed in a 1200.0 ml container
at 25.0°C. The partial pressure of neon is __________ atm.
Page 2
A) 8.70
B) 20.2
C) 0.700
D) 3.40
E) 5.60
7) The volume of HCl gas required to react with excess magnesium metal to produce
6.82 L of hydrogen gas at 2.19 atm and 35.0 °C is __________ L.
A) 3.41
B) 2.19
C) 13.6
D) 4.38
E) 6.82
8) A sample of
gas (12.28 g) occupies 100.0 L at 400.0 K and 2.00 atm.
A sample
weighing 9.49 g occupies __________ L at 353 K and 2.00 atm.
A) 77.3
B) 109
C) 147
D) 54.7
E) 68.2
9) A sample of an ideal gas (3.00 L) in a closed container at 25.0°C and 76.0 torr is
heated to 300 °C.
The pressure of the gas at this temperature is __________ torr.
A) 76.5
B) 146
C) 912
D) 2.53
×
10^2
E) 39.5
10) The molecular weight of a gas that has a density of 7.10 g/L at 25.0°C and 1.00
atm pressure is __________ g/mol. (This is a challenge problem.
Remember that
density = mass/volume, molecular weight = mass/mol and PV= nRT.)
A) 6.85
×
10^-2
B) 174
C) 5.75
×
10^-3
D) 14.6
E) 28.0
11) Which of the following molecules has hydrogen bonding as its only
intermolecular force?
A) CH
3
CH
2
CH
2
NH
2
B) HF
C) (CH
3
)
2
CHCH
2
OH
D) H
2
O
E) None, all of the above exhibit dispersion forces.
12) Large intermolecular forces in a substance are manifested by __________.
A) high heats of fusion and vaporization
Page 3
B) low vapor pressure
C) high melting point
D) high boiling point
E) all of the above
13) Which two bonds are most similar in polarity?
A) O
F and Cl
F
B) Cl
Cl and Be
Cl
C) B
F and Cl
F
D) Al
Cl and I
Br
E) I
Br and Si
Cl
14) The Lewis structure of AsH
3
shows __________ nonbonding electron pair(s) on As.
A) 0
B) 1
C) 2
D) 3
E) This cannot be determined from the data given.
15) The strongest interparticle attractions exist between particles of a __________
and the weakest interparticle attractions exist between particles of a __________.
A) gas, solid
B) solid, gas
C) solid, liquid
D) liquid, solid
E) liquid, gas
16) For resonance forms of a molecule or ion, __________.
A) one always corresponds to the observed structure
B) the observed structure is an average of the resonance forms
C) there cannot be more than two resonance structures for a given species
D) all the resonance structures are observed in various proportions
E) the same atoms need not be bonded to each other in all resonance forms
17) Which of the following metal ions should have the greatest attraction to a
chloride ion?
A) lithium ion
B) potassium ion
C) cesium ion
D) rubidium ion
E) sodium ion
Ace your assessments! Get Better Grades
Browse thousands of Study Materials & Solutions from your Favorite Schools
Brigham Young University-...
Brigham_Young_University-Idaho
School:
Introductory_General_Chemistry
Course:
Great resource for chem class. Had all the past labs and assignments
Leland P.
Santa Clara University
Introducing Study Plan
Using AI Tools to Help you understand and remember your course concepts better and faster than any other resource.
Find the best videos to learn every concept in that course from Youtube and Tiktok without searching.
Save All Relavent Videos & Materials and access anytime and anywhere
Prepare Smart and Guarantee better grades
Know more
Students also viewed documents
lab 18.docx
lab_18.docx
Course
Course
3
Module5QuizSTA2023.d...
Module5QuizSTA2023.docx.docx
Course
Course
10
Week 7 Test Math302....
Week_7_Test_Math302.docx.docx
Course
Course
30
Chapter 1 Assigment ...
Chapter_1_Assigment_Questions.docx.docx
Course
Course
5
Week 4 tests.docx.do...
Week_4_tests.docx.docx
Course
Course
23
Week 6 tests.docx.do...
Week_6_tests.docx.docx
Course
Course
106
