A)Which of the following is a benefit of plastics?(1 point) Responses Plastics conduct electricity. Plastics conduct electricity. The thermal conductivity of plastic is very low. The thermal conductivity of plastic is very low. Plastics can all be recycled together. Plastics can all be recycled together. Synthetic materials, such as plastic, biodegrade very quickly. Synthetic materials, such as plastic, biodegrade very quickly. Question 2 A)What happens at 0o Kelvin? Select the best answer.(1 point) Responses A substance will lose both shape and volume. A substance will lose both shape and volume. At 0o K, or absolute zero, all particle motion stops. At 0 o K, or absolute zero, all particle motion stops. Particle motion slows to a vibration, preventing particles from escaping forces of attraction. Particle motion slows to a vibration, preventing particles from escaping forces of attraction. Particles have enough kinetic energy to begin to move. Particles have enough kinetic energy to begin to move. Question 3 A)What happens at 0o Kelvin? Select the best answer.(1 point) Responses At 0o K, or absolute zero, all particle motion stops. At 0 o K, or absolute zero, all particle motion stops. Particle motion slows to a vibration, preventing particles from escaping forces of attraction. Particle motion slows to a vibration, preventing particles from escaping forces of attraction. A substance will lose both shape and volume. A substance will lose both shape and volume. Particles have enough kinetic energy to begin to move. Particles have enough kinetic energy to begin to move. Question 4 A)The boiling point of methanol is 64.7°C. Its melting point is –97.6°C. At room temperature (~25°C), methanol is in which state?(1 point) Responses intermediate between solid and liquid intermediate between solid and liquid gas gas liquid liquid intermediate between liquid and gas intermediate between liquid and gas Question 5 A)Which conclusion can be made from Gay-Lussac’s law?(1 point) Responses For a constant volume, the pressure of a gas is directly proportional to the temperature, in Kelvin. For a constant volume, the pressure of a gas is directly proportional to the temperature, in Kelvin. At a constant temperature, the pressure of a gas is indirectly proportional to the volume. At a constant temperature, the pressure of a gas is indirectly proportional to the volume. For a constant volume, the pressure of a gas is indirectly proportional to the temperature, in Kelvin. For a constant volume, the pressure of a gas is indirectly proportional to the temperature, in Kelvin. At a constant temperature, the pressure of a gas is directly proportional to the volume. At a constant temperature, the pressure of a gas is directly proportional to the volume. Question 6 A)There are 500 molecules in an airtight bucket, and the volume is held constant. Which change would cause the greatest increase in pressure?(1 point) Responses adding 100 more molecules and decreasing the temperature by 10K adding 100 more molecules and decreasing the temperature by 10K adding 100 more molecules and increasing the temperature by 10K adding 100 more molecules and increasing the temperature by 10K releasing 100 molecules and decreasing the temperature by 10K releasing 100 molecules and decreasing the temperature by 10K releasing 100 molecules and increasing the temperature by 10K releasing 100 molecules and increasing the temperature by 10K Question 7 A)Which quantities are inversely proportional if other variables are held constant?(1 point) Responses temperature and volume temperature and volume temperature and pressure temperature and pressure volume and pressure volume and pressure volume and number of moles volume and number of moles Question 8 A)Which term refers to the substance that is dissolved into another substance such as water?(1 point) Responses solute solute solution solution solvent solvent emulsion emulsion Question 9 A)Carbonated beverages contain dissolved carbon dioxide gas. Which temperatures are best for the liquid while it is being produced in the factory?(1 point) Responses High temperatures are best to maximize the solubility. High temperatures are best to maximize the solubility. High temperatures are best to minimize the solubility. High temperatures are best to minimize the solubility. Low temperatures are best to minimize the solubility. Low temperatures are best to minimize the solubility. Low temperatures are best to maximize the solubility. Low temperatures are best to maximize the solubility. Question 10 A)In a solution, which pair of actions could combine to keep a concentration constant?(1 point) Responses adding solute, then evaporating water adding solute, then evaporating water adding water, then removing solution adding water, then removing solution adding water, then adding solute adding water, then adding solute adding solute, then removing solution adding solute, then removing solution Question 11 A)A substance has a pH of 8.0. How would it be classified?(1 point) Responses strong acid strong acid strong base strong base weak base weak base weak acid weak acid Question 12 A) Use the reaction to answer the question. NH3 + H2O → OH– + NH4+ Which statement about the reaction is correct? (1 point) Responses NH3 is a base, and NH4+ is its conjugate acid. NH 3 is a base, and NH 4 + is its conjugate acid. NH3 is a base, and OH– is its conjugate acid. NH 3 is a base, and OH – is its conjugate acid. H2O is a base, and NH4+ is its conjugate acid. H 2 O is a base, and NH 4 + is its conjugate acid. H2O is a base, and OH– is its conjugate acid. H 2 O is a base, and OH – is its conjugate acid. Question 13 A)Which solution has a pH that is closest to neutral?(1 point) Responses milk milk chicken soup chicken soup hand soap hand soap saliva saliva Question 14 A)The same quantity of each solute is added to water. Which solution will have the greatest number of H3O+ ions at equilibrium? (1 point) Responses weak acid weak acid strong base strong base weak base weak base strong acid strong acid Question 15 A)Which change will increase the pH of a solution of acid?(1 point) Responses decreasing the strength of the acid decreasing the strength of the acid decreasing the amount of water added to the solute decreasing the amount of water added to the solute increasing the initial concentration of solute increasing the initial concentration of solute increasing the dissociation constant increasing the dissociation constant Question 16 A)The equation for a base solution is B + H2O ⇌ BH+ + OH−B + H2O ⇌ BH+ + OH−. The strength of the base in a solution is increased. How will the number of particles change?(1 point) Responses The number of B molecules will increase, and the number of water molecules will decrease. The number of B molecules will increase, and the number of water molecules will decrease. The number of B molecules will increase, and the number of OH– ions will decrease. The number of B molecules will increase, and the number of OH – ions will decrease. The number of BH+ molecules will increase, and the number of water molecules will decrease. The number of B H + molecules will increase, and the number of water molecules will decrease. The number of OH– ions will increase, and the number of BH+ molecules will decrease. The number of OH – ions will increase, and the number of B H + molecules will decrease.

Question

GPT-4o mini · Answer

Here are the best answers for each question based on the information provided:

Question 1:

Answer: The thermal conductivity of plastic is very low.

Question 2:

Answer: At 0 o K, or absolute zero, all particle motion stops.

Question 3:

Answer: At 0 o K, or absolute zero, all particle motion stops.

Question 4:

Answer: liquid

Question 5:

Answer: For a constant volume, the pressure of a gas is directly proportional to the temperature, in Kelvin.

Question 6:

Answer: adding 100 more molecules and increasing the temperature by 10K

Question 7:

Answer: temperature and volume

Question 8:

Answer: solute

Question 9:

Answer: High temperatures are best to minimize the solubility.

Question 10:

Answer: adding water, then removing solution

Question 11:

Answer: weak base

Question 12:

Answer: NH3 is a base, and NH4+ is its conjugate acid.

Question 13:

Answer: milk

Question 14:

Answer: strong acid

Question 15:

Answer: decreasing the strength of the acid

Question 16:

Answer: The number of OH– ions will increase, and the number of BH+ molecules will decrease.

If you have any more questions or need further clarification on any of the answers, feel free to ask!

r · Answer

A)Which of the following is a benefit of plastics?(1 point) Responses Plastics conduct electricity. Plastics conduct electricity. The thermal conductivity of plastic is very low. The thermal conductivity of plastic is very low. Plastics can all be recycled together. Plastics can all be recycled together. Synthetic materials, such as plastic, biodegrade very quickly. Synthetic materials, such as plastic, biodegrade very quickly. Question 2 A)What happens at 0o Kelvin? Select the best answer.(1 point) Responses A substance will lose both shape and volume. A substance will lose both shape and volume. At 0o K, or absolute zero, all particle motion stops. At 0 o K, or absolute zero, all particle motion stops. Particle motion slows to a vibration, preventing particles from escaping forces of attraction. Particle motion slows to a vibration, preventing particles from escaping forces of attraction. Particles have enough kinetic energy to begin to move. Particles have enough kinetic energy to begin to move. Question 3 A)What happens at 0o Kelvin? Select the best answer.(1 point) Responses At 0o K, or absolute zero, all particle motion stops. At 0 o K, or absolute zero, all particle motion stops. Particle motion slows to a vibration, preventing particles from escaping forces of attraction. Particle motion slows to a vibration, preventing particles from escaping forces of attraction. A substance will lose both shape and volume. A substance will lose both shape and volume. Particles have enough kinetic energy to begin to move. Particles have enough kinetic energy to begin to move. Question 4 A)The boiling point of methanol is 64.7°C. Its melting point is –97.6°C. At room temperature (~25°C), methanol is in which state?(1 point) Responses intermediate between solid and liquid intermediate between solid and liquid gas gas liquid liquid intermediate between liquid and gas intermediate between liquid and gas Question 5 A)Which conclusion can be made from Gay-Lussac’s law?(1 point) Responses For a constant volume, the pressure of a gas is directly proportional to the temperature, in Kelvin. For a constant volume, the pressure of a gas is directly proportional to the temperature, in Kelvin. At a constant temperature, the pressure of a gas is indirectly proportional to the volume. At a constant temperature, the pressure of a gas is indirectly proportional to the volume. For a constant volume, the pressure of a gas is indirectly proportional to the temperature, in Kelvin. For a constant volume, the pressure of a gas is indirectly proportional to the temperature, in Kelvin. At a constant temperature, the pressure of a gas is directly proportional to the volume. At a constant temperature, the pressure of a gas is directly proportional to the volume. Question 6 A)There are 500 molecules in an airtight bucket, and the volume is held constant. Which change would cause the greatest increase in pressure?(1 point) Responses adding 100 more molecules and decreasing the temperature by 10K adding 100 more molecules and decreasing the temperature by 10K adding 100 more molecules and increasing the temperature by 10K adding 100 more molecules and increasing the temperature by 10K releasing 100 molecules and decreasing the temperature by 10K releasing 100 molecules and decreasing the temperature by 10K releasing 100 molecules and increasing the temperature by 10K releasing 100 molecules and increasing the temperature by 10K Question 7 A)Which quantities are inversely proportional if other variables are held constant?(1 point) Responses temperature and volume temperature and volume temperature and pressure temperature and pressure volume and pressure volume and pressure volume and number of moles volume and number of moles Question 8 A)Which term refers to the substance that is dissolved into another substance such as water?(1 point) Responses solute solute solution solution solvent solvent emulsion emulsion Question 9 A)Carbonated beverages contain dissolved carbon dioxide gas. Which temperatures are best for the liquid while it is being produced in the factory?(1 point) Responses High temperatures are best to maximize the solubility. High temperatures are best to maximize the solubility. High temperatures are best to minimize the solubility. High temperatures are best to minimize the solubility. Low temperatures are best to minimize the solubility. Low temperatures are best to minimize the solubility. Low temperatures are best to maximize the solubility. Low temperatures are best to maximize the solubility. Question 10 A)In a solution, which pair of actions could combine to keep a concentration constant?(1 point) Responses adding solute, then evaporating water adding solute, then evaporating water adding water, then removing solution adding water, then removing solution adding water, then adding solute adding water, then adding solute adding solute, then removing solution adding solute, then removing solution Question 11 A)A substance has a pH of 8.0. How would it be classified?(1 point) Responses strong acid strong acid strong base strong base weak base weak base weak acid weak acid Question 12 A) Use the reaction to answer the question. NH3 + H2O → OH– + NH4+ Which statement about the reaction is correct? (1 point) Responses NH3 is a base, and NH4+ is its conjugate acid. NH 3 is a base, and NH 4 + is its conjugate acid. NH3 is a base, and OH– is its conjugate acid. NH 3 is a base, and OH – is its conjugate acid. H2O is a base, and NH4+ is its conjugate acid. H 2 O is a base, and NH 4 + is its conjugate acid. H2O is a base, and OH– is its conjugate acid. H 2 O is a base, and OH – is its conjugate acid. Question 13 A)Which solution has a pH that is closest to neutral?(1 point) Responses milk milk chicken soup chicken soup hand soap hand soap saliva saliva Question 14 A)The same quantity of each solute is added to water. Which solution will have the greatest number of H3O+ ions at equilibrium? (1 point) Responses weak acid weak acid strong base strong base weak base weak base strong acid strong acid Question 15 A)Which change will increase the pH of a solution of acid?(1 point) Responses decreasing the strength of the acid decreasing the strength of the acid decreasing the amount of water added to the solute decreasing the amount of water added to the solute increasing the initial concentration of solute increasing the initial concentration of solute increasing the dissociation constant increasing the dissociation constant Question 16 A)The equation for a base solution is B + H2O ⇌ BH+ + OH−B + H2O ⇌ BH+ + OH−. The strength of the base in a solution is increased. How will the number of particles change?(1 point) Responses The number of B molecules will increase, and the number of water molecules will decrease. The number of B molecules will increase, and the number of water molecules will decrease. The number of B molecules will increase, and the number of OH– ions will decrease. The number of B molecules will increase, and the number of OH – ions will decrease. The number of BH+ molecules will increase, and the number of water molecules will decrease. The number of B H + molecules will increase, and the number of water molecules will decrease. The number of OH– ions will increase, and the number of BH+ molecules will decrease. The number of OH – ions will increase, and the number of B H + molecules will decrease.

GPT-4o mini · Answer

Here are the best answers to the questions listed: