Final Exam (C)

A  the frequency decreases

B  the speed decreases

C  Planck’s constant decreases

D  the energy increases

E  None of the above occur as the wavelength of a photon increases.

A  the speed increases.

B  the wavelength increases

C  the frequency decreases.

D  the wavelength gets shorter.

E  None of the above occur as the energy of a photon increases.

A  Atoms are usually larger than their corresponding cation.

B  Nonmetals tend to gain electrons.

C  Metals tend to form cations.

D  Anions are usually larger than their corresponding atom.

E  The halogens tend to form 1+ ions.

A  46.26 amu

B  45.91 amu

C  46.34 amu

D  46.84 amu

E  44.99 amu

A  The average kinetic energy of a particle is not proportional to the temperature.

B  A single particle does not move in a straight line.

C  The size of the particle is large compared to the volume.

D  The collisions of particles with one another is completely elastic.

A  110. mL

B  165 mL

C  220. mL

D  55.0 mL

A  a homogeneous mixture.

B  a solution.

C  a compound.

D  a heterogeneous mixture.

E  an alloy.

A  A scientific law is fact.

B  An observation explains why nature does something.

C  A hypothesis is speculation that is difficult to test.

D  A scientific law summarizes a series of related observations.

E  Once a theory is constructed, it is considered fact.

A  Since the two metals have the same mass, the final temperature of the two metals will be 398 K, exactly halfway between the two initial temperatures.

B  Since the two metals have the same mass, the thermal energy contained in each metal after equilibrium will be the same.

C  Since the two metals have the same mass, the thermal energy contained in the iron and gold after reaching thermal equilibrium will be the same.

D  Since the two metals have the same mass, but the specific heat capacity of gold is much smaller than that of iron, the final temperature of the two metals will be closer to 298 K than to 498 K.

E  None of the above are true.

A  The burning of fossil fuels contributes to global warming.

B  The more energy produced per kg of CO2 produced, the better the fuel.

C  Cars that run on hydrogen fuel cells are environmentally friendly.

D  Acid rain is one of the problems associated with the combustion of fossil fuels.

E  All of the above are true.

A  a hot cup of coffee (system) cools on a countertop

B  the freezing of water

C  the vaporization of rubbing alcohol

D  the combustion of propane

E  the chemical reaction in a “hot pack” often used to treat sore muscles

A  Na2CO3

B  NaOH

C  CH3CH2OH

D  CH3CO2H

A  1.1 × 10-13 

B  3.3

C  4.6 × 10-4 

D  4.6 × 1010 

E  2.2 × 10-11 

A  The solution is considered saturated.

B  The solution would be considered unsaturated if it were cooled a bit to increase the solubility of the solid.

C  The solution is considered unsaturated.

D  The solution is considered supersaturated.

E  None of the above are true.

A  7.59°C

B  2.09°C

C  3.41°C

D  -2.09°C

A  enough solvent to make 1.00 kg of solution.

B  1.00 kg of solvent.

C  1.00 L of solvent.

D  enough solvent to make 1.00 L of solution.

A  4

B  3

C  2

D  0

E  1

A  tetrahedral

B  trigonal pyramidal

C  bent

D  trigonal planar

E  linear

A  21.0 M

B  3.50 × 10-4  M

C  0.0210 M

D  1.26 × 103  M

E  0.350 M

A  0.012

B  29.9

C  0.521

D  83.7

E  0.0335

A  1.48

B  0.27

C  270

D  0.675

E  675

A  0

B  -1

C  1

D  2

A  SnO2

B  ClF

C  ClF5

D  CsI

A  The rate of vaporization increases with increasing temperature.

B  The rate of vaporization increases with decreasing strength of intermolecular forces.

C  Molecules with hydrogen bonding are more volatile than compounds with dipole-dipole forces.

D  The rate of vaporization increases with increasing surface area.

E  None of the above are false.

A  KI

B  CS2

C  CH4

D  HF

E  I2