Chemistry OpenStax 2e Complete Test Bank 2026 Updated – Full Practice Questions, Chapter Exams, and Study Resource

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CHEMISTRY:ATOMSFIRST2E2NDEDITION



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,Tableofcontent
Chapter 1 Essential Ideas
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Chapter 2 Atoms, Molecules, and Ions
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Chapter 3 Electronic Structure and Periodic Properties of Elements
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xChapter 4 Chemical Bonding and Molecular Geometry
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Chapter 5 Advanced Theories of Bonding
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Chapter 6 Composition of Substances and Solutions
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xChapter 7 Stoichiometry of Chemical Reactions
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xChapter 8 Gases x x



Chapter 9 Thermochemistry
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xChapter 10 Liquids and Solids
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xChapter 11 Solutions and Colloids
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xChapter 12 Thermodynamics
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Chapter 13 Fundamental Equilibrium Concepts Chapter
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x14 Acid-Base Equilibria
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Chapter 15 Equilibria of Other Reaction Classes
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xChapter 16 Electrochemistry
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Chapter 17 Kinetics
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Chapter 18 Representative Metals, Metalloids, and Nonmetals
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xChapter 19 Transition Metals and Coordination Chemistry
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xChapter 20 Nuclear Chemistry
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Chapter 21 Organic Chemistry
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OpenStaxChemistryAF SupplementalTestItems
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Chapter01: Essential Ideas
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Supplemental Test Items to accompany OpenStax Chemistry. Note that not all chapters of OpenStax
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Chemistry have accompanying test items. Building on the community-oriented nature of OpenStax
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resources, we invite you to submit items to be considered for future inclusion.
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Chapter01:Essential Ideas x




1. A0.150 kg metallicblock measures 25.0mmin length,43.0mm inwidth,and19 .0 mmin
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height. What is the density of the metallic block in g/cm3? (Outcome # 3) (DOK 2)
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A. 7.34 x10-6 g/cm3 x x



B. 7.34 x10-3 g/cm3 x x



C. 7.34g/cm3* x



2. Anobjectwitha massof0.255 kg anddensityof2.89 g/cm3measures 34mm inlengthand 46
v x x x x x v x x



mm in width. What is the height of the object? (Outcome # 3) (DOK 3)
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A. 5.6 cm* x



B. 5.6 x10-2cm x x x



C. 7.2 x10-4cm x x x



3. Howwouldyoudeterminethedensityofanirregularobject?(Outcome#3) (DOK3) x



A. Itwouldbeimpossibletodeterminethemassoftheobjectwithoutmore
information. x


B. D=m/v,someasurethemass oftheobject usinga balance. Thentofind volume, x v x x x


TESTBANKSELLw E iRd.thC, aOnM
m
deleansugrtehtuhseinhgeaignhatp,pro priatemeasuringtool. x e v x v v




C. D = m/v, so measure the mass of the object using a balance. Then to find volume, fill a
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graduated cylinder with a known amount of water and immerse the object in the
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water. The amount of displaced water is the volume in cm3 or mL.*
x x x x x x x x x x x x x



4. Whatisthebaseunitforlengthinthe metricsystem?(Outcome# 6)(DOK 1)
v x x v




A. m*
B. km
C. mm
5. What isthebaseunitfor mass inthemetricsystem?(Outcome #6)(DOK 1)
v x x x e




A. kg
B. g*
C. mg
6. Whatisthebaseunit forvolumeinthemetricsystem?(Outcome #6)(DOK 1)
v v x x x



A. L*
B. mL
C. dL
7. Itisimportant thatscientistsuseunitsthatareunderstood on agloballevel.Theseunitsare
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referred to as SI units which stands for
x x x . (Outcome # 6) (DOK 1)
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A. standardinternationalunits
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Chapter01: Essential Ideas
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B. standardintercontinentalunits
C. internationalsystem of units* x x



8. Convert18.50fttothe SIunit forlength. (Outcome #6)(DOK 2)
v x v x x x



A. 563.9 cm x



B. 5.639m* x



C. 0.005639 km x



9. Anexperimentalmouseweighsabout4.41x10-2lbs. Whatwouldtheweightbe intheSI unit x x x



for mass? (Outcome # 6) (DOK 2)
x x x x x x x



A. 20.0 g x


B. 0.0200kg* x



C. 20,003 mg x



10. Accuracy is defined as how close a measured value comes to a
x x .(Outcome#6)(DOK x x x x x x x x x x



1) x



A. corevalue
B. fixedvalue
C. truevalue*
11. Precision is defined as how themeasuredvaluesaretooneanother.(Outcome#6)
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(DOK 1)
x x



A. common
B. reproducible* TESTBANKSELLER.COM
C. accurate
12. Anexperimentrequiresyoutomakeseveralmeasurements.Basedonthevaluesinthe x



table below, what would be the best statement that represents the data set if the true
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value is 0.2135? (Outcome # 11) (DOK 2)
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TrialA TrialB TrialC x x


0.2139 0.2893 0.2135
0.2130 0.3210 0.2134
0.2133 0.2999 0.3712
0.2135 0.2998 0.3715
A. ThemeasurementsinTrialAareaccurateand precise,TrialBisneitheraccuratenor x v




precise, and Trial C is accurate however, not precise.
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B. ThemeasurementsinTrialAareaccurateandprecise,TrialBisneitheraccuratenor
precise, and Trial C is precise however, not accurate.
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C. Themeasurementsin Trial A are accurate and precise, Trial’s B and C are neither x x x x x x x x x x x x



accurate nor precise.* x x x



13. Anexperimentrequiresyoutomakeseveralmeasurements.Basedonthevaluesinthe x



table below, what would be the best statement that represents the data set if the true
x x x x x x x x x x x x x x x x



value is 2.73? (Outcome # 11) (DOK 2) (Paired item 1)
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Credit: Modification of assessment itemsprovided by Lumen Learning, with generousfunding from
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the William and Flora Hewlett Foundation. Licensed Creative Commons Attribution 4.0.
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