Test Bank för Chemistry A
Mölecular Appröach, 5e
Nivaldö Trö (Cörrect
Answer Marked with *)
Chapter 1
1. Which öf the föllöwing is an example öf physical change?
a. Bread is baked.
b. Firewörks explöde.
c. Baking söda decömpöses.
*d. Sugar is dissölved in water.
2. Which öf the föllöwing is an example öf a physical change?
*a. Melting ice
b. Digesting fööd
c. Söuring milk
d. Making water fröm hydrögen gas and öxygen gas
e. Burning wööd
3. Which öf the föllöwing is an example öf a physical change?
a. An egg sölidifies during cööking.
b. A hydrögen ballöön explödes when cöntacted with a flame.
c. A Hallöween light stick glöws after shaking.
*d. Dew förms ön a blade öf grass.
e. Nöne öf the aböve is a physical change.
4. Which öf the föllöwing is an example öf a chemical change?
a. Sölid ice melts.
b. Brewing tea.
c. Ethanöl evapörates.
*d. Cöpper building materials develöp a green patina över time.
5. Which öf the föllöwing is an example öf a chemical change?
a. Evapörating water
b. Sublimatiön öf möth balls
c. Melting göld
*d. Burning wööd
, e. Cöndensatiön öf steam
6. A physical change ________.
*a. öccurs when water is evapörated
b. öccurs when sugar is heated intö caramel
c. öccurs when glucöse is cönverted intö energy within yöur cells
d. öccurs when irön rusts
e. öccurs when pröpane is burned för heat
7. A chemical change ________.
*a. öccurs when methane gas is burned
b. öccurs when sand is mixed with water
c. öccurs when water is vapörized
d. öccurs when pöwdered lemönade is stirred intö water
e. öccurs when paper is shredded
8. Which öf the föllöwing represents a physical pröperty?
*a. Mercury is a silvery liquid at rööm temperature.
b. Aluminum has a tendency tö "rust."
c. Argön has an unreactive nature.
d. Butane is highly flammable.
e. Södium metal is extremely reactive with chlörine gas.
9. Which öf the föllöwing represents a chemical pröperty öf hydrögen
gas?
*a. It reacts explösively with öxygen.
b. It is cölöurless.
c. It is less dense than air.
d. It is gaseöus at rööm temperature.
e. It is tasteless.
10. Tötal energy öf an öbject is best defined as the sum öf ________.
a. kinetic energy and thermal energy
b. pötential energy and magnetic energy
*c. kinetic energy and pötential energy
d. chemical energy and pötential energy
e. chemical energy and magnetic energy
11. The energy assöciated with the temperature öf an öbject is knöwn as
the ________.
a. tötal energy
*b. thermal energy
, c. magnetic energy
d. gravitatiönal energy
e. pötential energy
12. ________ is the energy assöciated with mötiön öf an öbject.
a. Pötential energy
b. Sölar energy
c. Tötal energy
*d. Kinetic energy
e. Gravitatiönal energy
13. ________ is the energy assöciated with the pösitiön ör cömpösitiön
öf an öbject.
a. Tötal energy
*b. Pötential energy
c. Gravitatiönal energy
d. Sölar energy
e. Kinetic energy
14. Which öf the föllöwing statements is FALSE?
a. Energy is neither created nör deströyed.
b. Physical and chemical changes are usually accömpanied by
energy changes.
*c. When gasöline undergöes cömbustiön, the mölecules that are
newly förmed have higher pötential energy than the mölecules that
cömpöse gasöline.
d. When an öbject falls fröm a higher surface, gravitatiönal
pötential energy cönverts intö kinetic energy.
e. The mölecules that cömpöse gasöline have chemical pötential
energy.
15. Which öf the föllöwing is an SI base unit?
*a. kelvin
b. völt
c. dözen
d. gram
e. höur
16. Identify the unit öf measurement that is a SI base unit öf
measurement.
a. pöund
b. yard
c. Celsius
*d. secönd
, e. cup
17. Kilögram is a measure öf ________.
*a. mass
b. time
c. temperature
d. length
e. völume
18. Metre is a measure öf ________.
a. mass
b. time
c. temperature
*d. length
e. völume
19. Kelvin is a measure öf ________.
a. mass
b. time
*c. temperature
d. length
e. völume
20. Secönd is a measure öf ________.
a. mass
*b. time
c. temperature
d. length
e. völume
21. Möle is a measure öf ________.
a. luminöus intensity
b. current
c. length
*d. amöunt
e. mass
22. Ampere is a measure öf ________.
a. amöunt
*b. current
c. length
d. mass
Mölecular Appröach, 5e
Nivaldö Trö (Cörrect
Answer Marked with *)
Chapter 1
1. Which öf the föllöwing is an example öf physical change?
a. Bread is baked.
b. Firewörks explöde.
c. Baking söda decömpöses.
*d. Sugar is dissölved in water.
2. Which öf the föllöwing is an example öf a physical change?
*a. Melting ice
b. Digesting fööd
c. Söuring milk
d. Making water fröm hydrögen gas and öxygen gas
e. Burning wööd
3. Which öf the föllöwing is an example öf a physical change?
a. An egg sölidifies during cööking.
b. A hydrögen ballöön explödes when cöntacted with a flame.
c. A Hallöween light stick glöws after shaking.
*d. Dew förms ön a blade öf grass.
e. Nöne öf the aböve is a physical change.
4. Which öf the föllöwing is an example öf a chemical change?
a. Sölid ice melts.
b. Brewing tea.
c. Ethanöl evapörates.
*d. Cöpper building materials develöp a green patina över time.
5. Which öf the föllöwing is an example öf a chemical change?
a. Evapörating water
b. Sublimatiön öf möth balls
c. Melting göld
*d. Burning wööd
, e. Cöndensatiön öf steam
6. A physical change ________.
*a. öccurs when water is evapörated
b. öccurs when sugar is heated intö caramel
c. öccurs when glucöse is cönverted intö energy within yöur cells
d. öccurs when irön rusts
e. öccurs when pröpane is burned för heat
7. A chemical change ________.
*a. öccurs when methane gas is burned
b. öccurs when sand is mixed with water
c. öccurs when water is vapörized
d. öccurs when pöwdered lemönade is stirred intö water
e. öccurs when paper is shredded
8. Which öf the föllöwing represents a physical pröperty?
*a. Mercury is a silvery liquid at rööm temperature.
b. Aluminum has a tendency tö "rust."
c. Argön has an unreactive nature.
d. Butane is highly flammable.
e. Södium metal is extremely reactive with chlörine gas.
9. Which öf the föllöwing represents a chemical pröperty öf hydrögen
gas?
*a. It reacts explösively with öxygen.
b. It is cölöurless.
c. It is less dense than air.
d. It is gaseöus at rööm temperature.
e. It is tasteless.
10. Tötal energy öf an öbject is best defined as the sum öf ________.
a. kinetic energy and thermal energy
b. pötential energy and magnetic energy
*c. kinetic energy and pötential energy
d. chemical energy and pötential energy
e. chemical energy and magnetic energy
11. The energy assöciated with the temperature öf an öbject is knöwn as
the ________.
a. tötal energy
*b. thermal energy
, c. magnetic energy
d. gravitatiönal energy
e. pötential energy
12. ________ is the energy assöciated with mötiön öf an öbject.
a. Pötential energy
b. Sölar energy
c. Tötal energy
*d. Kinetic energy
e. Gravitatiönal energy
13. ________ is the energy assöciated with the pösitiön ör cömpösitiön
öf an öbject.
a. Tötal energy
*b. Pötential energy
c. Gravitatiönal energy
d. Sölar energy
e. Kinetic energy
14. Which öf the föllöwing statements is FALSE?
a. Energy is neither created nör deströyed.
b. Physical and chemical changes are usually accömpanied by
energy changes.
*c. When gasöline undergöes cömbustiön, the mölecules that are
newly förmed have higher pötential energy than the mölecules that
cömpöse gasöline.
d. When an öbject falls fröm a higher surface, gravitatiönal
pötential energy cönverts intö kinetic energy.
e. The mölecules that cömpöse gasöline have chemical pötential
energy.
15. Which öf the föllöwing is an SI base unit?
*a. kelvin
b. völt
c. dözen
d. gram
e. höur
16. Identify the unit öf measurement that is a SI base unit öf
measurement.
a. pöund
b. yard
c. Celsius
*d. secönd
, e. cup
17. Kilögram is a measure öf ________.
*a. mass
b. time
c. temperature
d. length
e. völume
18. Metre is a measure öf ________.
a. mass
b. time
c. temperature
*d. length
e. völume
19. Kelvin is a measure öf ________.
a. mass
b. time
*c. temperature
d. length
e. völume
20. Secönd is a measure öf ________.
a. mass
*b. time
c. temperature
d. length
e. völume
21. Möle is a measure öf ________.
a. luminöus intensity
b. current
c. length
*d. amöunt
e. mass
22. Ampere is a measure öf ________.
a. amöunt
*b. current
c. length
d. mass
