CHEM 134 Test 2 Latest Update 2026 | Exam Prep | High-
Yield Review Guide
1. According to Arrhenius, what is the definition of an acid?
A substance that reacts with bases to form salts.
A substance that increases the concentration of hydroxide ions in
aqueous solution.
A substance that donates electrons in a chemical reaction.
A substance that increases the concentration of hydrogen ions in
aqueous solution.
2. A barometer is an instrument that can be used to measure:
air pressure
humidity
temperature
cloudiness
3. What is the primary characteristic of gas particle movement?
Gas particles are stationary.
Gas particles move in a circular motion.
Gas particles move freely and rapidly.
Gas particles move slowly and in fixed positions.
4. What is the relationship between the volume of a gas and its temperature
according to Charles's Law?
The volume of a gas decreases with increasing temperature.
, The volume of a gas remains constant with increasing temperature.
The volume of a gas increases with increasing temperature.
The volume of a gas fluctuates with increasing temperature.
5. Charles's law is described by which of the following equations?
V=kT
VT=k
V1T1=V2T2
All of the above
6. What is an aqueous solution?
An aqueous solution is a mixture of a substance dissolved in water.
An aqueous solution is a dispersoid solution.
An aqueous solution is a mixture of a liquid substances.
An aqueous solution is a mixture of a substance suspended in water.
7. Describe the characteristics that define a strong base in chemistry.
A strong base completely dissociates in water to produce hydroxide
ions.
A strong base reacts with acids to form salts only.
A strong base does not produce hydroxide ions in solution.
A strong base partially dissociates in water and has a low pH.
8. If you have a nonpolar solute and you want to create a solution, which of the
following solvents would you choose to maximize solubility?
, Hexane
Ethanol
Sodium chloride solution
Water
9. What type of solvents are most effective for dissolving polar and ionic
solutes?
Nonpolar solvents
Polar solvents
Hydrophobic solvents
Organic solvents
10. Describe the significance of oxidation states in determining the reactivity of
elements in chemical reactions.
Oxidation states are irrelevant to the reactivity of elements.
Oxidation states determine the physical state of a substance at room
temperature.
Oxidation states only apply to metals and not to nonmetals.
Oxidation states help predict how elements will react, as they
indicate the transfer of electrons during reactions.
11. A chemist conducts a reaction that theoretically produces 50 grams of
product but only obtains 40 grams. What is the percent yield of the reaction?
100%
80%
60%
, 50%
12. Describe the significance of monoprotic acids in acid-base reactions.
Monoprotic acids are significant because they do not participate in
acid-base reactions.
Monoprotic acids are significant because they can accept multiple
protons, making them strong acids.
Monoprotic acids are significant because they can only react with
bases.
Monoprotic acids are significant because they can donate a single
proton, which simplifies the calculation of pH and reaction
stoichiometry.
13. What is the formula used to calculate percent yield in a chemical reaction?
Percent yield = (theoretical yield / actual yield) x 100%
Percent yield = (actual yield / theoretical yield) x 100%
Percent yield = (actual yield + theoretical yield) / 2
Percent yield = (actual yield - theoretical yield) x 100%
14. What is the purpose of oxidation states?
None of the above
Keeps track of electron counts
Describes state of matter
All of the above
Shows what will dissolve in solution
Yield Review Guide
1. According to Arrhenius, what is the definition of an acid?
A substance that reacts with bases to form salts.
A substance that increases the concentration of hydroxide ions in
aqueous solution.
A substance that donates electrons in a chemical reaction.
A substance that increases the concentration of hydrogen ions in
aqueous solution.
2. A barometer is an instrument that can be used to measure:
air pressure
humidity
temperature
cloudiness
3. What is the primary characteristic of gas particle movement?
Gas particles are stationary.
Gas particles move in a circular motion.
Gas particles move freely and rapidly.
Gas particles move slowly and in fixed positions.
4. What is the relationship between the volume of a gas and its temperature
according to Charles's Law?
The volume of a gas decreases with increasing temperature.
, The volume of a gas remains constant with increasing temperature.
The volume of a gas increases with increasing temperature.
The volume of a gas fluctuates with increasing temperature.
5. Charles's law is described by which of the following equations?
V=kT
VT=k
V1T1=V2T2
All of the above
6. What is an aqueous solution?
An aqueous solution is a mixture of a substance dissolved in water.
An aqueous solution is a dispersoid solution.
An aqueous solution is a mixture of a liquid substances.
An aqueous solution is a mixture of a substance suspended in water.
7. Describe the characteristics that define a strong base in chemistry.
A strong base completely dissociates in water to produce hydroxide
ions.
A strong base reacts with acids to form salts only.
A strong base does not produce hydroxide ions in solution.
A strong base partially dissociates in water and has a low pH.
8. If you have a nonpolar solute and you want to create a solution, which of the
following solvents would you choose to maximize solubility?
, Hexane
Ethanol
Sodium chloride solution
Water
9. What type of solvents are most effective for dissolving polar and ionic
solutes?
Nonpolar solvents
Polar solvents
Hydrophobic solvents
Organic solvents
10. Describe the significance of oxidation states in determining the reactivity of
elements in chemical reactions.
Oxidation states are irrelevant to the reactivity of elements.
Oxidation states determine the physical state of a substance at room
temperature.
Oxidation states only apply to metals and not to nonmetals.
Oxidation states help predict how elements will react, as they
indicate the transfer of electrons during reactions.
11. A chemist conducts a reaction that theoretically produces 50 grams of
product but only obtains 40 grams. What is the percent yield of the reaction?
100%
80%
60%
, 50%
12. Describe the significance of monoprotic acids in acid-base reactions.
Monoprotic acids are significant because they do not participate in
acid-base reactions.
Monoprotic acids are significant because they can accept multiple
protons, making them strong acids.
Monoprotic acids are significant because they can only react with
bases.
Monoprotic acids are significant because they can donate a single
proton, which simplifies the calculation of pH and reaction
stoichiometry.
13. What is the formula used to calculate percent yield in a chemical reaction?
Percent yield = (theoretical yield / actual yield) x 100%
Percent yield = (actual yield / theoretical yield) x 100%
Percent yield = (actual yield + theoretical yield) / 2
Percent yield = (actual yield - theoretical yield) x 100%
14. What is the purpose of oxidation states?
None of the above
Keeps track of electron counts
Describes state of matter
All of the above
Shows what will dissolve in solution
