Chemistry concepts and calculations

Which of the following statements is TRUE? A hypothesis is speculation that is d

Which of the following statements is TRUE? A hypothesis is speculation that is difficult to test. A scientific law is fact. An observation explains why nature does something. Once…

Which of the following statements is TRUE? A) If K > Q, it means the forward rea

Which of the following statements is TRUE? A) If K > Q, it means the forward reaction will proceed to form more products. B) If Q = K, it means the reaction has stopped. C) If …

Which of the following statements is TRUE? A) If Q K, it means the forward react

Which of the following statements is TRUE? A) If Q K, it means the forward reaction will proceed to form more products. C) If Q = K, it means the reaction is not at equilibrium. D…

Which of the following statements is TRUE? A) The solubility of a solid in water

Which of the following statements is TRUE? A) The solubility of a solid in water generally decreases with increasing temperature B) The solubility of a gas in water usually increa…

Which of the following statements is TRUE? An exothermic process will always be

Which of the following statements is TRUE? An exothermic process will always be spontaneous. a. A process in which the entropy of the system increases will always be spontaneous. …

Which of the following statements is TRUE? Dynamic equilibrium indicates that th

Which of the following statements is TRUE? Dynamic equilibrium indicates that the amount of reactants and products are equal. Dynamic equilibrium occurs when the rate of the forwa…

Which of the following statements is TRUE? In general, the solubility of a solid

Which of the following statements is TRUE?                                                      In general, the solubility of a solid in water decreases with increasing temperatur…

Which of the following statements is TRUE? Perpetual motion machines are a possi

Which of the following statements is TRUE? Perpetual motion machines are a possibility in the near future. There is a 'heat tax' for every energy transaction. A spontaneous reacti…

Which of the following statements is TRUE? Reaction quotient is the concentratio

Which of the following statements is TRUE? Reaction quotient is the concentration of the products raised to the stoichiometric coefficients divided by the concentration of the rea…

Which of the following statements is TRUE? Which of the following statements is

Which of the following statements is TRUE? Which of the following statements is TRUE? The rate constant does not depend on the activation energy for a reaction where the products …

Which of the following statements is TRUE? Which of the following statements is

Which of the following statements is TRUE? Which of the following statements is TRUE? Ionic compounds at room temperature typically conduct electricity. An ionic bond is formed th…

Which of the following statements is TRUE? Which of the following statements is

Which of the following statements is TRUE? Which of the following statements is TRUE? The rate constant does not depend on the activation energy for a reaction where the products …

Which of the following statements is a correct definition for a Bromsted-Lowry a

Which of the following statements is a correct definition for a Bromsted-Lowry acid 1 Proton acceptor Electron pair donor Electron pair acceptor Proton donor Which of the followin…

Which of the following statements is a true statement concerning a reaction that

Which of the following statements is a true statement concerning a reaction that has reached a state of equilibrium? A system has reached equilibrium when there are equal amounts …

Which of the following statements is accurate regarding the parasympathetic and

Which of the following statements is accurate regarding the parasympathetic and sympathetic nervous systems? A. When necessary, the parasympathetic system is responsible for slowi…

Which of the following statements is always true? One mole of carbon atoms has t

Which of the following statements is always true? One mole of carbon atoms has the same mass as one mole of oxygen atoms. One mole of aluminum atoms has the same number of atoms a…

Which of the following statements is are true about NP-complete problems? (Pleas

Which of the following statements is are true about NP-complete problems? (Please circle all that apply.) NP-complete problems cannot be solved. NP-complete problems require O(2N)…

Which of the following statements is are/true? Liquid mercury forms a convex men

Which of the following statements is are/true? Liquid mercury forms a convex meniscus in glass as its cohesive forces due to metallic bonding are greater than the adhesive forces …

Which of the following statements is at least partly responsible for the formati

Which of the following statements is at least partly responsible for the formation of multiple products in the reaction? The positive charge in the intermediate is delocalized. Th…

Which of the following statements is consistent with your data. Primary alcohols

Which of the following statements is consistent with your data. Primary alcohols are more reactive with hydrogen halides than secondary or tertiary alcohols Secondary alcohols are…

Which of the following statements is correct about the blood bicarbonarte buffer

Which of the following statements is correct about the blood bicarbonarte buffer system? a. Increasing the CO2 (Pco2) in the blood will decrease the [HCO, VTH CO,] ratio in the bl…

Which of the following statements is correct about the blood bicarbonarte buffer

Which of the following statements is correct about the blood bicarbonarte buffer system? a. Increasing the CO2 (Pco2) in the blood will decrease the [HCO, VTH CO,] ratio in the bl…

Which of the following statements is correct concerning the isoelectric point of

Which of the following statements is correct concerning the isoelectric point of histidine? Which of the following statements is correct concerning the isoelectric point of histid…

Which of the following statements is correct concerning the isoelectric point of

Which of the following statements is correct concerning the isoelectric point of histidine? Which of the following statements is correct concerning the isoelectric point of histid…

Which of the following statements is correct for a reaction that has K

Which of the following statements is correct for a reaction that has K << 1? Answer The forward reaction is faster than the reverse reaction. The reverse reaction is faster …

Which of the following statements is correct for the acetonitrile molecule CH3-C

Which of the following statements is correct for the acetonitrile molecule CH3-C-N? 36. H CCEN A.) There are five sigma bonds and two pi bonds, bond angles are 109.5 and 1800 B. T…

Which of the following statements is correct for the acetonitrile molecule CH3-C

Which of the following statements is correct for the acetonitrile molecule CH3-C-N? 36. H CCEN A.) There are five sigma bonds and two pi bonds, bond angles are 109.5 and 1800 B. T…

Which of the following statements is correct for the translation process? Specif

Which of the following statements is correct for the translation process? Specific protein chains are produced based on the nucleotide sequence found in the mRNA. The gene in DNA …

Which of the following statements is correct when describing the interactions th

Which of the following statements is correct when describing the interactions that occur between individual chlorine atoms as they approach each other and form Cl2? a. As two chlo…

Which of the following statements is correct: Compound P is a stronger acid than

Which of the following statements is correct: Compound P is a stronger acid than compound Q. Compound P is a weaker acid than compound Q. Compound P and compound  have equal stren…

Which of the following statements is correct: The boiling point of H20 is signif

Which of the following statements is correct: The boiling point of H20 is significantly higher than H_2 S due to greater dispersion forces. The boiling point of H_2 S is significa…

Which of the following statements is correct? A 0.20 M solution of Cu^2+ absorbs

Which of the following statements is correct? A 0.20 M solution of Cu^2+ absorbs half as much light (at 620 nm) as a 0.10 M solution of Cu^2+. A 0.20 M solution of Cu^2+ absorbs t…

Which of the following statements is correct? The boiling point of H_2O is signi

Which of the following statements is correct? The boiling point of H_2O is significantly higher than H2S greater dispersion forces. The boiling point of H_2S is significantly high…

Which of the following statements is correct? The size of an atom is approximate

Which of the following statements is correct? The size of an atom is approximately defined by the region of the space where protons move around. The significant portion of the mas…

Which of the following statements is false ? A for one mole of any gas behaving

Which of the following statements is false ? A for one mole of any gas behaving ideally, the ratio PV/RT = 1.0 B the van der Waals equation adjusts the volume down to account for …

Which of the following statements is false ? Explain your choice. Hydrotelluric

Which of the following statements is false? Explain your choice. Hydrotelluric acid, H2Te, is a stronger acid than H2S because Te has a larger radius than S. The larger the electr…

Which of the following statements is false ? The viscosity of a liquid decreases

Which of the following statements is false? The viscosity of a liquid decreases as temperature increases. The vapor pressure of a substance increases as temperature increases. The…

Which of the following statements is false and not a part of the purpose of the

Which of the following statements is false and not a part of the purpose of the equilibrium experiment? a. The equilibrium constant is independent of starting proportions of react…

Which of the following statements is false and not a part of the purpose of the

Which of the following statements is false and not a part of the purpose of the equilibrium experiment? The equilibrium constant is independent of starting proportions of reactant…

Which of the following statements is false for an enzyme that follows Michaelis-

Which of the following statements is false for an enzyme that follows Michaelis-Menten kinetics? A. The Michaelis-Menten equation assumes that ES maintains a steady state. B. Maxi…

Which of the following statements is false for buffer solutions? a.) The buffer

Which of the following statements is false for buffer solutions? a.) The buffer strength is sum of the hydronioum ion concentration plus the conjugate base concentration. b.) Idea…

Which of the following statements is false regarding Alkaline metals ? Beryllium

Which of the following statements is false regarding Alkaline metals ? Beryllium has a lower melting point than Aluminum. Beryllium metal is toxic. A significant fraction of magne…

Which of the following statements is false regarding Alkaline metals? Beryllium

Which of the following statements is false regarding Alkaline metals? Beryllium metal is toxic. A significant fraction of magnesium that is produced ends up acting as an alloying …

Which of the following statements is false regarding Ni/Ni alloys. The Ni-Fe sys

Which of the following statements is false regarding Ni/Ni alloys. The Ni-Fe system features a eutectoid temperature that is lower than the Fe-Fe_3 C eutectoid. In general, Ni exh…

Which of the following statements is false regarding copper / copper alloys ? Co

Which of the following statements is false regarding copper / copper alloys ? Copper has a higher thermal conductivity than aluminum. Copper and its alloys form a green tarnish ov…

Which of the following statements is false regarding the two-step energy diagram

Which of the following statements is false regarding the two-step energy diagram depicted below? A) Points b and d depict transition states. B) The reaction is endothermic. C) The…

Which of the following statements is false? A bubble raft can demonstrate vacanc

Which of the following statements is false? A bubble raft can demonstrate vacancies and solute atom defects. Plastic deformation in a bubble raft occurs by dislocation motion. Scr…

Which of the following statements is false? A. Si has a greater (more negative)

Which of the following statements is false? A. Si has a greater (more negative) first electron affinity than Al B. NaO is more basic in aqueous solution than Al2O3 C. Al exhibits …

Which of the following statements is false? A. Si has a greater (more negative)

Which of the following statements is false? A. Si has a greater (more negative) first electron affinity than Al B. NaO is more basic in aqueous solution than Al2O3 C. Al exhibits …

Which of the following statements is false? To protect yourself from radioactivi

Which of the following statements is false? To protect yourself from radioactivity, _______ keep distance between you and the radioactivity wear proper clothing and use proper shi…