2nd Semester Exam PRACTICE
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Question 1 |
The bonds between the hydrogen and oxygen atoms in a water molecule are:
A | ionic bonds |
B | nonpolar covalent bonds |
C | hydrogen bonds |
D | polar covalent bonds |
Question 1 Explanation:
Water & Aqueous Systems (Ch.17)
Question 2 |
The compound shown is a(n):


A | ester |
B | aldehyde |
C | carboxylic acid |
D | ketone |
E | amine |
Question 2 Explanation:
Organic Chemistry (Ch.25-26)
Question 3 |
What measuring instrument is used in a titration?
A | syringe |
B | graduated cylinder |
C | Erlenmeyer flask |
D | buret |
E | volumetric pipette |
Question 3 Explanation:
Neutralization (Ch. 21)
Question 4 |
If 2.0 mL of 6.0M HCl is used to make a 500.0-mL aqueous solution, what is the molarity of the dilute solution?
A | 0.83M |
B | 0.24M |
C | 2.4M |
D | 0.024M |
E | 0.30M |
Question 4 Explanation:
Solutions (Ch.18)
Question 5 |
What does not change when a solution is diluted by the addition of solvent?
A | molarity of solution |
B | volume of solvent |
C | mass of solution |
D | mass of solvent |
E | number of moles of solute |
Question 5 Explanation:
Solutions (Ch.18)
Question 6 |
As the temperature of a sample of matter is increased, what happens to the average kinetic energy of the particles in the sample?
A | it does not change |
B | it decreases |
C | it increases |
Question 6 Explanation:
Thermochemistry (Ch.11)
Question 7 |
The following equation shows the reaction that occurs when nitroglycerine explodes.
4 C3H5O9N3 → 12 CO2 + 6 N2 + O2 + 10 H2O + 1725 kcal This reaction is:A | endothermic |
B | a combination reaction |
C | a combustion reaction |
D | exothermic |
Question 7 Explanation:
Thermochemistry (Ch.11)
Question 8 |
What thickness of what material will stop gamma radiation?
A | sheet of paper |
B | sheet of aluminum foil |
C | one inch of water |
D | three inches of lead |
Question 8 Explanation:
Nuclear Chemistry (Ch.28)
Question 9 |
Hydrocarbons containing only single bonds between the carbon atoms are called:
A | alkanes |
B | alkenes |
C | aromatics |
D | ketones |
E | alkynes |
Question 9 Explanation:
Organic Chemistry (Ch.25-26)
Question 10 |
To what does plutonium-239 (atomic number 94) decay when it loses an alpha particle?
A | americium-239 |
B | thorium-237 |
C | uranium-235 |
D | plutonium-235 |
Question 10 Explanation:
Nuclear Chemistry (Ch.28)
Question 11 |
Collisions between gas molecules are:
A | inelastic |
B | elastic |
C | never observed |
Question 11 Explanation:
States of Matter (Ch.10)
Question 12 |
Why does the pressure inside a container of gas increase if more gas is added to the container?
A | because there is a corresponding decrease in volume |
B | because there is a corresponding increase in the number of particles striking an area of the wall of the container per unit time |
C | because there is a corresponding increase in the force of the collisions between the particles and the walls of the container |
D | because there is a corresponding increase in the temperature |
Question 12 Explanation:
Gas Laws (Ch.12)
Question 13 |
If more solvent is added to a solution, which of the following does NOT happen?
A | its molarity decreases |
B | it becomes more dilute
|
C | its percent (v/v) decreases |
D | its vapor pressure decreases |
Question 13 Explanation:
Solutions (Ch.18)
Question 14 |
The volume of a gas is reduced from 4 L to 0.5 L while the temperature is held constant. How does the gas pressure change?
A | increases by a factor of four |
B | decreases by a factor of eight |
C | increases by a factor of two |
D | increases by a factor of eight |
Question 14 Explanation:
Gas Laws (Ch.12)
Question 15 |
During a phase change, the temperature of a substance:
A | decreases |
B | increases |
C | may increase or decrease |
D | remains constant |
Question 15 Explanation:
Thermochemistry (Ch.11)
Question 16 |
If the hydrogen ion concentration in a solution is is 10-10 M, is it acidic, basic, or neutral?
A | basic |
B | neutral |
C | it cannot be determined |
D | acidic |
Question 16 Explanation:
Acids & Bases (Ch. 20)
Question 17 |
If 4 moles of gas are added to a container that already holds 1 mole of gas, how will the pressure change within the container?
A | The pressure will be five times as great. |
B | The pressure will be twice as great. |
C | The pressure will not change. |
D | The pressure will be four times as great. |
Question 17 Explanation:
Gas Laws (Ch.12)
Question 18 |
At a certain temperature and pressure, 0.20 mol of CO2 has a volume of 3.1 L. A 3.1-L sample of hydrogen at the same temperature and pressure:
A | contains the same number of atoms |
B | has the same mass |
C | has a higher density |
D | contains the same number of molecules |
Question 18 Explanation:
Gas Laws (Ch.12)
Question 19 |
How does the surface tension of water compare with the surface tensions of most other liquids?
A | lower |
B | higher |
C | about the same |
Question 19 Explanation:
Water & Aqueous Systems (Ch.17)
Question 20 |
What is the name of the compound shown?


A | 2,4-dimethyl-4-pentene |
B | 2,5-dimethylpentane |
C | 2,4-ethylbutene |
D | 2,4-methylbutene |
E | 2,4-dimethyl-1-pentene |
Question 20 Explanation:
Organic Chemistry (Ch.25-26)
Question 21 |
Why does a higher concentration make a reaction faster?
A | There are more collisions per second and the collisions are of greater energy. |
B | Collisions occur with greater energy. |
C | There are more collisions per second only. |
Question 21 Explanation:
Solutions (Ch. 18)
Question 22 |
What is the molarity of a solution containing 9.0 moles of solute in 500.0 mL of solution?
A | 1.8 M |
B | 0.18 M |
C | 0.45 M |
D | 18 M |
E | 4.5 M |
Question 22 Explanation:
Solutions (Ch.18)
Question 23 |
What is the purpose of a titration?
A | to determine the concentration of acid or base |
B | to determine the concentration of acid only |
C | to determine the volume of base |
D | to determine the color of an indicator |
Question 23 Explanation:
Neutralization (Ch. 20)
Question 24 |
Holding the temperature constant while adding more solute to a solution that already has solute crystals at the bottom of the container:
A | causes the solution to become supersaturated |
B | causes more solute crystals to appear at the bottom of the container |
C | makes the solution more concentrated |
Question 24 Explanation:
Solutions (Ch.18)
Question 25 |
How many neutrons are there in an alpha particle?
A | 4 |
B | 2 |
C | 0 |
D | 3 |
E | 1 |
Question 25 Explanation:
Nuclear Chemistry (Ch.28)
Question 26 |
The bonds between adjacent water molecules are called:
A | ionic bonds |
B | hydrogen bonds |
C | nonpolar covalent bonds |
D | polar covalent bonds |
Question 26 Explanation:
Water & Aqueous Systems (Ch.17)
Question 27 |
Which of the following is NOT a colligative property of a solution?
A | supersaturation |
B | boiling point elevation |
C | freezing point depression |
D | vapor pressure lowering |
Question 27 Explanation:
Solutions (Ch.18)
Question 28 |
What does gamma radiation consist of?
A | photons |
B | hydrogen nuclei |
C | helium nuclei |
D | electrons |
Question 28 Explanation:
Nuclear Chemistry (Ch.28)
Question 29 |
How does the boiling point of water compare with the boiling points of other molecules of similar size?
A | lower |
B | cannot be determined |
C | higher |
D | about the same |
Question 29 Explanation:
Water & Aqueous Systems (Ch.17)
Question 30 |
What is obtained when phosphoric acid and magnesium hydroxide are mixed?
A | magnesium phosphate plus water |
B | magnesium hydride |
C | hydrogen gas |
D | hydrogen-magnesium alloy |
E | water only |
Question 30 Explanation:
Neutralization (Ch. 21)
Question 31 |
Why does air leave a tire when the tire valve is opened?
A | because the pressure outside the tire is lower than the pressure inside the tire |
B | because there are more gas particles outside the tire than inside the tire |
C | because the pressure outside the tire is greater than the pressure inside the tire |
D | because the temperature is higher outside the tire than inside the tire |
Question 31 Explanation:
Gas Laws (Ch.12)
Question 32 |
What is the specific heat of a substance if 1560 cal is required to raise the temperature of a 312 g sample by 15°C?
A | 1.33 cal/g•°C |
B | 0.99 cal/g•°C |
C | 0.33 cal/g•°C |
D | 0.033 cal/g•°C |
Question 32 Explanation:
Thermochemistry (Ch.11)
Question 33 |
What mass of Na2SO4 is needed to make 2.5 L of 2.0M solution?
A | 178 g |
B | 284 g |
C | 710 g |
D | 356 g |
Question 33 Explanation:
Solutions (Ch.18)
Question 34 |
If [H+] = 1 x 10-11 M, what is the pH of the solution?
A | 11.0 |
B | -1.0 |
C | 3.0 |
D | -3.0 |
Question 34 Explanation:
Acids & Bases (Ch. 20)
Question 35 |
Increasing the rate at which a solute dissolves and the amount of solute that dissolves can be accomplished by:
A | keeping the temperature of a solution constant |
B | increasing the temperature of a solution |
C | decreasing the temperature of a solution |
Question 35 Explanation:
Solutions (Ch.18)
Question 36 |
When 10 g of diethyl ether is converted to vapor at its boiling point, about how much heat is absorbed? (C4H10O, ΔHvap = 15.7 kJ/mol, boiling point: 34.6°C)
A | Not enough information given |
B | 2 J |
C | 0.2 kJ |
D | 2 kJ |
Question 36 Explanation:
Thermochemistry (Ch.11)
Question 37 |
Which type of ionizing radiation can be blocked by clothing?
A | alpha particle |
B | X-radiation |
C | beta particle |
D | gamma radiation |
Question 37 Explanation:
Nuclear Chemistry (Ch.28)
Question 38 |
The structure of 2,3-dimethylheptane is:
A | ![]() |
B | ![]() |
C | ![]() |
D | ![]() |
E | ![]() |
Question 38 Explanation:
Organic Chemistry (Ch.25-26)
Question 39 |
How many mL of 3M HCl are needed to make 300 mL of 0.1M HCl?
A | 90 mL |
B | 10 mL |
C | 100 mL |
D | 9 mL |
E | 30 mL |
Question 39 Explanation:
Solutions (Ch.18)
Question 40 |
What is the molarity of a solution containing 8 grams of solute in 500 mL of solution? (molar mass of solute = 24 g)
A | 0.67 M |
B | 0.5 M |
C | 0.1 M |
D | 0.05 M |
E | 1 M |
Question 40 Explanation:
Solutions (Ch.18)
Question 41 |
Which of the following compounds does not contain a C=O bond?
A | aldehydes |
B | ketones |
C | esters |
D | amides |
E | ethers |
Question 41 Explanation:
Organic Chemistry (Ch.25-26)
Question 42 |
Which of these changes would NOT cause an increase in the pressure of a gaseous system?
A | The temperature is increased. |
B | The container is made larger. |
C | Another gas is added to the container. |
D | Additional amounts of the same gas are added to the container. |
Question 42 Explanation:
Gas Laws (Ch.12)
Question 43 |
What is the volume occupied by 2.20 mol of hydrogen at STP?
A | 2.60 L |
B | 49.3 L |
C | 98.6 L |
D | 2.20 L |
E | 24.6 L |
Question 43 Explanation:
States of Matter (Ch.10)
Question 44 |
What is the SI unit of pressure?
A | candela |
B | joule |
C | pascal |
D | mole |
E | newton |
Question 44 Explanation:
States of Matter (Ch.10)
Question 45 |
Which of the following is NOT one of the assumptions of kinetic theory?
A | Only small attractive and repulsive forces exists between gas particles. |
B | All gas particles move in constant random motion. |
C | Particles in a gas are assumed to have an insignificant volume. |
D | Gases consist of hard spherical particles. |
Question 45 Explanation:
Gas Laws (Ch.12)
Question 46 |
If the percent (mass/volume) for the solute is 4% and the volume of the solution is 750 mL, what is the mass of solute in solution?
A | 30 g |
B | 75 g |
C | 7.5 g |
D | 3.0 g |
Question 46 Explanation:
Solutions (Ch.18)
Question 47 |
What thickness of what material is necessary to stop an alpha particle?
A | three inches of lead |
B | three feet of concrete |
C | sheet of paper |
D | sheet of aluminum foil |
Question 47 Explanation:
Nuclear Chemistry (Ch.28)
Question 48 |
Which of the following operations usually makes a substance dissolve faster in a solvent?
I. crushing the substance to a powder
II. raising the temperature
III. agitation
A | I, II and III |
B | I and II |
C | II and III |
D | I only |
E | II only |
Question 48 Explanation:
Solutions (Ch.18)
Question 49 |
A sample of gas occupies 40.0 mL at -123°C. What volume does the sample occupy at 27°C?
A | 8.80 mL |
B | 182 mL |
C | 80.0 mL |
D | 20.0 mL |
Question 49 Explanation:
Gas Laws (Ch.12)
Question 50 |
When gasoline is burned in an automobile engine:
A | potential energy is transformed into kinetic energy |
B | energy is created |
C | energy is destroyed |
D | heat energy is converted to chemical energy |
Question 50 Explanation:
Thermochemistry (Ch.11)
Question 51 |
Alkenes always contain a:
A | C-C bond |
B | C=H bond |
C | C≡C bond |
D | C=C bond |
E | C≡H bond |
Question 51 Explanation:
Organic Chemistry (Ch.25-26)
Question 52 |
What is the change in the atomic number when an atom emits an alpha particle?
A | remains the same |
B | increases by 2 |
C | decreases by 1 |
D | increases by 1 |
E | decreases by 2 |
Question 52 Explanation:
Nuclear Chemistry (Ch.28)
Question 53 |
What type of acid is sulfuric acid?
A | protic |
B | triprotic |
C | diprotic |
D | monoprotic |
Question 53 Explanation:
Acids & Bases (Ch. 20)
Question 54 |
Which of the following is a property of an acid?
A | strong color |
B | nonelectrolyte |
C | sour taste |
D | slippery feel |
E | unreactive |
Question 54 Explanation:
Acids & Bases (Ch. 20)
Question 55 |
Why does a solute depress the freezing point?
A | because the solute disrupts crystal formation by the solvent |
B | because the solute has bigger molecules than the solvent |
C | because the solute is colder than the solvent |
D | because the solute tends to sink to the bottom of the solution |
Question 55 Explanation:
Solutions (Ch.18)
Question 56 |
If the percent by volume is 2.0% and the volume of solution is 250 mL, what is the volume of solute in solution?
A | 12.5 mL |
B | 5.0 mL |
C | 1.25 mL |
D | 0.5 mL |
Question 56 Explanation:
Solutions (Ch.18)
Question 57 |
When cooking food with natural gas, the energy comes from:
A | chemical potential energy of the gas molecules |
B | the pressure of the gas |
C | the volume of the gas |
D | kinetic energy in the gas |
Question 57 Explanation:
Thermochemistry (Ch.11)
Question 58 |
If the pH of a solution is 6, what is its concentration of hydrogen ions?
A | 10-8 M |
B | 10-6 M |
C | 10-1 M |
D | 10-7 M |
E | 10-14 M |
Question 58 Explanation:
Acids & Bases (Ch. 20)
Question 59 |
How many neutrons are in the nucleus of iodine-131 (atomic number 53)?
A | 53 |
B | 127 |
C | 78 |
D | 131 |
Question 59 Explanation:
Nuclear Chemistry (Ch.28)
Question 60 |
What are the products of the reaction of one mole of Mg(OH)2 and one mole of H2SO4?
A | MgSO4 + 2 H2O |
B | MgSO4 + H3O+ + OH- |
C | MgH2 + H3SO4 |
D | MgSO4 + H3O+ + H2O |
Question 60 Explanation:
Neutralization (Ch. 21)
Question 61 |
What drives the turbine in a nuclear power plant?
A | steam |
B | UF6 gas |
C | the primary coolant |
D | the moderator |
E | the control rods |
Question 61 Explanation:
Nuclear Chemistry (Ch.28)
Question 62 |
Which atom in a water molecule has the greatest electronegativity?
A | one of the hydrogen atoms |
B | there is no difference in the electronegativities of the atoms in a water molecule |
C | the oxygen atom |
D | both hydrogen atoms |
Question 62 Explanation:
Water & Aqueous Systems (Ch.17)
Question 63 |
An ideal gas CANNOT be:
A | liquefied |
B | heated |
C | pressurized |
D | cooled |
Question 63 Explanation:
Gas Laws (Ch.12)
Question 64 |
Most solids:
A | are amorphous in nature |
B | consist of particles in chaotic motion |
C | are dense and incompressible |
D | have high melting points |
Question 64 Explanation:
States of Matter (Ch.10)
Question 65 |
What particle does argon-39 (atomic number 18) lose when it decays to potassium-39 (atomic number 19)?
A | electron |
B | proton |
C | neutron |
D | alpha particle |
Question 65 Explanation:
Nuclear Chemistry (Ch.28)
Question 66 |
When an acid reacts with a base what compounds are formed?
A | metal oxides only |
B | a salt only |
C | water only |
D | a salt and water |
Question 66 Explanation:
Acids & Bases (Ch. 20)
Question 67 |
Which of the following is primarily responsible for holding water molecules together in the liquid state?
A | ionic bonds |
B | polar covalent bonds |
C | hydrogen bonds |
D | dispersion forces |
Question 67 Explanation:
Water & Aqueous Systems (Ch.17)
Question 68 |
Which compound can act as both a Bronsted-Lowry acid and a Bronsted-Lowry base?
A | sodium hydroxide |
B | sodium chloride |
C | water |
D | ammonia |
E | hydrochloric acid |
Question 68 Explanation:
Acids & Bases (Ch. 20)
Question 69 |
What products result from a neutralization reaction?
A | polar covalent compounds |
B | acids and bases |
C | a salt only |
D | water only |
E | a salt and water |
Question 69 Explanation:
Neutralization (Ch. 21)
Question 70 |
Hydrocarbons containing carbon-carbon triple bonds are called:
A | alkanes |
B | alkenes |
C | olefins |
D | alkynes |
E | aromatic hydrocarbons |
Question 70 Explanation:
Organic Chemistry (Ch.25-26)
Question 71 |
What is the pH of a solution with [H+] = 4.5 x 10-9?
A | 8.0 |
B | 8.6 |
C | 8.3 |
D | 9.3 |
Question 71 Explanation:
Acids & Bases (Ch. 20)
Question 72 |
A solution is a mixture:
A | in which a solid solute is always dissolved in a liquid solvent |
B | that is heterogeneous |
C | from which the solute can be filtered |
D | that has the same properties throughout |
Question 72 Explanation:
Solutions (Ch.18)
Question 73 |
When 1.0 g of solid NaOH (ΔHsoln = -44.51 kJ/mol) dissolves in 10 L of water, how much heat is released?
A | 1.11 kJ |
B | 44.51 kJ |
C | 1.11 J |
D | 40.51 kJ |
Question 73 Explanation:
Thermochemistry (Ch.11)
Question 74 |
The compound shown is an:


A | alkene |
B | olefin |
C | aromatic compound |
D | alkyne |
E | alkane |
Question 74 Explanation:
Organic Chemistry (Ch.25-26)
Question 75 |
What is the volume of alcohol present in 200.0 mL of a 55% (v/v) solution of alcohol?
A | 28 mL |
B | 110 mL |
C | 36 mL |
D | 145 mL |
Question 75 Explanation:
Solutions (Ch.18)
Question 76 |
What thickness of what material is necessary to stop a beta particle?
A | three inches of lead |
B | three feet of concrete |
C | sheet of paper |
D | sheet of aluminum foil |
Question 76 Explanation:
Nuclear Chemistry (Ch.28)
Question 77 |
A student adds enough water to 225-mL of a 0.80M solution of KI to make 1.0 L of a more dilute KI solution. What is the molarity of the new solution?
A | 0.18M |
B | 2.8M |
C | 180M |
D | 0.35M |
Question 77 Explanation:
Solutions (Ch.18)
Question 78 |
If a stock solution of hydrochloric acid is 3.0M, how many milliliters are needed to make 200.0 mL of 0.10M HCl?
A | 1.5 mL |
B | 6.7 mL |
C | 67 mL |
D | 15 mL |
E | 150 mL |
Question 78 Explanation:
Solutions (Ch.18)
Question 79 |
What is a property of a base?
A | strong color |
B | bitter taste |
C | unreactive |
D | nonelectrolyte |
E | watery feel |
Question 79 Explanation:
Acids & Bases (Ch. 20)
Question 80 |
Which of the following is NOT a phase change?
A | vaporization |
B | melting |
C | diffusion |
D | sublimation |
Question 80 Explanation:
States of Matter (Ch.10)
Question 81 |
When heat is added to boiling water, its temperature:
A | increases |
B | decreases |
C | depends on the amount of water |
D | stays the same |
Question 81 Explanation:
Thermochemistry (Ch.11)
Question 82 |
Alcohols are hydrocarbon derivatives in which one or more hydrogens have been replaced by a hydroxyl functional group. What is the general formula of an alcohol?
A | R-OH |
B | R-CO-H |
C | R-O-R |
D | R-CO-OH |
E | R-CO-R |
Question 82 Explanation:
Organic Chemistry (Ch.25-26)
Question 83 |
What is the change in atomic number when an atom emits gamma radiation?
A | increases by 2 |
B | remains the same |
C | decreases by 1 |
D | decreases by 2 |
E | increases by 1 |
Question 83 Explanation:
Nuclear Chemistry (Ch.28)
Question 84 |
The simplest alkyne is:
A | propyne |
B | ethane |
C | acetylene |
D | benzene |
E | ethylene |
Question 84 Explanation:
Organic Chemistry (Ch.25-26)
Question 85 |
What type of reaction is known as a thermonuclear reaction?
A | beta emission |
B | neutron emission |
C | fission |
D | fusion |
E | transmutation |
Question 85 Explanation:
Nuclear Chemistry (Ch.28)
Question 86 |
Standard conditions when working with gases are defined as:
A | 0°C and 10 kPa |
B | 0 K and 101 kPa |
C | 0 K and 10 kPa |
D | 0°C and 101 kPa |
Question 86 Explanation:
States of Matter (Ch.10)
Question 87 |
What does the ideal gas law allow a scientist to calculate that the other laws do not?
A | volume |
B | energy |
C | pressure |
D | number of moles |
E | temperature |
Question 87 Explanation:
Gas Laws (Ch.12)
Question 88 |
How much heat does it take to warm 16.0 g of pure water from 90.0°C to 100.0°C? (specific heat of water = 4.18 J/(g•°C) )
A | 16.0 J |
B | 669 J |
C | 66.9 J |
D | 160 J |
Question 88 Explanation:
Thermochemistry (Ch.11)
Question 89 |
Why does a higher temperature cause a reaction to go faster?
A | Collisions occur with greater energy only. |
B | There are more collisions per second only. |
C | There are more collisions per second and the collisions are of greater energy. |
Question 89 Explanation:
Solutions (Ch.18)
Question 90 |
A process that absorbs heat is a(n) ________process.
A | ectothermic |
B | exothermic |
C | polythermic |
D | endothermic |
Question 90 Explanation:
Thermochemistry (Ch.11)
Question 91 |
What is the volume occupied by 71 g of chlorine gas at STP?
A | 44.8 L |
B | 67.2 L |
C | 22.4 L |
D | 56.0 L |
E | 78.4 L |
Question 91 Explanation:
States of Matter (Ch.10)
Question 92 |
What is the change in atomic number when an atom emits a beta particle?
A | 0 |
B | -2 |
C | +1 |
D | +2 |
E | -1 |
Question 92 Explanation:
Nuclear Chemistry (Ch.28)
Question 93 |
If an isotope undergoes beta emission:
A | the atomic number changes |
B | protons are given off |
C | the mass number changes |
D | the number of neutrons remains the same |
Question 93 Explanation:
Nuclear Chemistry (Ch.28)
Question 94 |
Alkynes always contain a:
A | C≡C bond |
B | C=C bond |
C | C=H bond |
D | C≡H bond |
E | C-C bond |
Question 94 Explanation:
Organic Chemistry (Ch.25-26)
Question 95 |
A piece of metal is heated, then submerged in cool water. Which statement below describes what happens?
A | The temperature of the water will decrease. |
B | The temperature of the water will increase. |
C | The temperature of the water will increase and the temperature of the metal will decrease. |
D | The temperature of the water will decrease and the temperature of the metal will increase. |
E | The temperature of the metal will increase. |
Question 95 Explanation:
Thermochemistry (Ch.11)
Question 96 |
What does the symbol "ΔH" stand for?
A | the specific heat of a substance |
B | the heat capacity of a substance |
C | one Calorie given off by a reaction |
D | the heat of reaction for a chemical reaction |
Question 96 Explanation:
Thermochemistry (Ch.11)
Question 97 |
What is the amount of heat required to raise the temperature of 200.0 g of aluminum by 10°C? (specific heat of aluminum = 0.21 cal/(g•°C) )
A | 42,000 cal |
B | 420,000 cal |
C | 420 cal
|
D | 4200 cal |
Question 97 Explanation:
Thermochemistry (Ch.11)
Question 98 |
Which structure below represents a ketone?
A | ![]() |
B | ![]() |
C | ![]() |
D | ![]() |
E | ![]() |
Question 98 Explanation:
Organic Chemistry (Ch.25-26)
Question 99 |
What is the concentration of hydronium ions in a neutral solution?
A | No determination can be made from the information given |
B | 100 M
|
C | 10-7 M
|
D | 10-10 M |
Question 99 Explanation:
Acids & Bases (Ch. 20)
Question 100 |
What is the number of grams of neon present in 78.4 L of neon at STP?
A | 70 g |
B | 140 g |
C | 105 g |
D | 20 g |
E | 35 g |
Question 101 |
What happens to the pressure of a gas inside a container if the temperature of the gas is lowered?
A | The pressure does not change. |
B | The pressure increases. |
C | The pressure decreases. |
Question 101 Explanation:
Gas Laws (Ch.12)
Question 102 |
What type of reaction is an acid-base reaction?
A | decomposition |
B | single replacement |
C | combination |
D | double replacement |
Question 102 Explanation:
Neutralization (Ch. 21)
Question 103 |
The condensation of steam is a(n):
A | electrolytic process |
B | exothermic process |
C | catalytic process |
D | endothermic process |
Question 103 Explanation:
Thermochemistry (Ch.11)
Question 104 |
What mass of sucrose, C12H22O11, is needed to make 500.0 mL of a 0.200M solution?
A | 17.1 g |
B | 34.2 g |
C | 68.4 g |
D | 100 g |
Question 104 Explanation:
Solutions (Ch.18)
Question 105 |
A gas occupies a volume of 0.7 L at 10.1 kPa. What volume will the gas occupy at 101 kPa?
A | 0.7 L |
B | 0.07 L |
C | 4 L |
D | 7 L |
Question 105 Explanation:
Gas Laws (Ch.12)
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