,ACCESS Test Bank for Chemistry A Molecular Approach 5th Edition Tro
Chemistry: A Molecular Approach, 5e (Tro)
Chapter 1 Matter, Measurement, and Problem Solving
Multiple Choice Questions
1) Molecules!!can!!be!!described!!as
A) mixtures!!of!!two!!or!!more!!pure!!substances.
B) mixtures!!of!!two!!or!!more!!elements!!that!!have!!a!!specific!!ratio!!between!!components.
C) two!!or!!more!!atoms!!chemically!!joined!!together.
D) heterogeneous!!mixtures.
E) homogeneous!!mixtures.
!!Answer: ! ! C
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2) Identify!!the!!TRUE!!statement.
A) Hydrogen!!peroxide!!is!!used!!as!!rocket!!fuel!!and!!removes!!color!!from!!hair.
B) Hydrogen!!peroxide!!is!!safe!!to!!drink.
C) Hydrogen!!peroxide!!is!!a!!stable!!molecule.
D) Water!!reacts!!with!!skin.
E) Hydrogen!!peroxide!!is!!smaller !!than!!water
.!!Answer:! ! A
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3) Which!!of!!the!!following!!represents!!a!!hypothesis?
A) Sodium!!reacts!!with!!water!!to!!form!!sodium!!hydroxide!!and!!hydrogen!!gas.
B) Argon!!gas!!is!!a!!fairly!!inert!!substance.
C) Water!!is!!a!!liquid!!at!!room!!temperature.
D) When!!a!!substance!!combusts,!!it!!combines!!with!!air.
E) When!!paper!!burns,!!heat!!is!!given!!off
.!!Answer:! ! D
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4) The!!statement,!!"In!!a!!chemical!!reaction,!!matter!!is!!neither!!created!!nor!!destroyed"!!is!!called
A) the!!Law!!of!!Conservation!!of!!Mass.
B) Dalton's!!Atomic!!Theory.
C) the!!Scientific!!Method.
D) the!!Law!!of!!Multiple!!Proportions.
E) the!!Law!!of!!Definite!!Proportions.
!!Answer: ! ! A
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,ACCESS Test Bank for Chemistry A Molecular Approach 5th Edition Tro
5) Dalton's!!Atomic!!Theory!!states
A) that!!all!!elements!!have!!several!!isotopes.
B) that!!matter!!is!!composed!!of!!small!!indestructible!!particles.
C) that!!the!!properties!!of!!matter!!are!!determined!!by!!the!!properties!!of!!atoms.
D) that!!energy!!is!!neither!!created!!nor!!destroyed!!during!!a!!chemical!!reaction.
E) that!!an!!atom!!is!!predominantly!!empty!!space
.!!Answer:! ! B
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6) A!!scientific!!theory
A) is!!just!!a!!theory.
B) is!!a!!strict!!set!!of!!rules!!and!!procedures!!that!!lead!!to!!inarguable!!fact.
C) isn't!!used!!much!!in!!modern!!chemistry.
D) is!!based!!on!!continued!!observation!!and!!experiment.
E) is!!a!!framework!!for!!proving!!an!!argument!!you!!know!!to!!be!!tru
e.!!Answer:! ! D
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7) Which!!of!!the!!following!!statements!!is!!TRUE?
A) Experiments!!are!!not!!needed!!to!!validate!!a!!theory.
B) Once!!a!!theory!!is!!proposed,!!it!!is!!considered!! fact.
C) A!!hypothesis!!is!!speculation!!that!!is!!difficult!!to!!test.
D) An!!observation!!explains!!why!!nature!!does!!something.
E) A!!scientific!!law!!summarizes!!a!!series!!of!!related!!observation
s.!!Answer:! ! E
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8) Identify!!a!!liquid.
A) definite!!volume!!and!!definite!!shape
B) definite!!volume!!and!!no!!definite!!shape
C) definite!!shape!!and!!no!!definite!!volume
D) no!!definite!!shape!!and!!no!!definite!!volum
e!!Answer:! ! B
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, ACCESS Test Bank for Chemistry A Molecular Approach 5th Edition Tro
9) Identify!!a!!solid.
A) definite!!volume!!and!!definite!!shape
B) definite!!volume!!and!!no!!definite!!shape
C) definite!!shape!!and!!no!!definite!!volume
D) no!!definite!!shape!!and!!no!!definite!!volum
e!!Answer:! ! A
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10) Identify!!a!!gas.
A) definite!!volume!!and!!definite!!shape
B) definite!!volume!!and!!no!!definite!!shape
C) definite!!shape!!and!!no!!definite!!volume
D) no!!definite!!shape!!and!!no!!definite!!volum
e!!Answer:! ! D
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11) Which!!of!!the!!following!!statements!!about!!crystalline!!and!!amorphous!!solids!!is!!TRUE?
A) A!!crystalline!!solid!!is!!composed!!of!!atoms!!or!!molecules!!arranged!!with!!long-
range!!repeating!!order.
B) An!!example!!of!!a!!crystalline!!solid!!is!!plastic.
C) An!!example!!of!!an!!amorphous!!solid!!is!!diamond.
D) A!!crystalline!!solid!!is!!composed!!of!!atoms!!or!!molecules!!with!!a!!majority!!of!!its!!volume!!empty.
E) All!!of!!the!!above!!statements!!are!!TRUE
.!!Answer:! ! A
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12) Which!!of!!the!!following!!statements!!about!!the!!phases!!of!!matter!!is!!TRUE?
A) In!!both!!solids!!and!!liquids,!!the!!atoms!!or!!molecules!!pack!!closely!!to!!one!!another.
B) Liquids!!are!!highly!!compressible.
C) Gaseous!!substances!!have!!no!!space!!between!!atoms!!or!!molecules.
D) There!!is!!only!!one!!type!!of!!geometric!!arrangement!!that!!the!!atoms!!or!!molecules!!in!!any!!solid!!
can!!adopt.
E) Solids!!are!!free!!to!!move!!around
.!!Answer:! ! A
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