Chemistry concepts and calculations
117302 questions • Page 2006 / 2347
When succinate is oxidized to fumarate in the citric acid cycle, electrons are t
When succinate is oxidized to fumarate in the citric acid cycle, electrons are transferred to bound FAD to produce FADH2 in complex II instead of NADH. Electrons then travel throu…
When sufficient quantity of heat has been added to reach the boiling point of a
When sufficient quantity of heat has been added to reach the boiling point of a solution, what happens to any additional heat added? When sufficient quantity of heat has been adde…
When sufficient quantity of heat has been added to reach the boiling point of a
When sufficient quantity of heat has been added to reach the boiling point of a solution, what happens to any additional heat added? a) additional heat is used to maintain the boi…
When sufficient quantity of heat has been added to reach the boiling point of a
When sufficient quantity of heat has been added to reach the boiling point of a solution, what happens to any additional heat added? a) additional heat is used to maintain the boi…
When sulfuric acid is a component of polluted air, it chemically attacks statues
When sulfuric acid is a component of polluted air, it chemically attacks statues, memorials, and monuments made from limestone. Given that the most common mineral in limestone is …
When synthesizing aspirin in the lab((Mixed 2g salicylic acid, 5mL acetic anhydr
When synthesizing aspirin in the lab((Mixed 2g salicylic acid, 5mL acetic anhydride, 5 drops concentrated sulfuric acid, added distilled water after heating)). . . . . . . What is…
When synthesizing aspirin in the lab((Mixed 2g salicylic acid, 5mL acetic anhydr
When synthesizing aspirin in the lab((Mixed 2g salicylic acid, 5mL acetic anhydride, 5 drops concentrated sulfuric acid, added distilled water after heating)). . . . . . . What is…
When synthesizing aspirin in the lab, what is the purpose of the sulfuric acid i
When synthesizing aspirin in the lab, what is the purpose of the sulfuric acid in the mixture? ((Mixed 2g salicylic acid, 5mL acetic anhydride, 5 drops concentrated sulfuric acid,…
When synthesizing aspirin in the lab, what is the purpose of the sulfuric acid i
When synthesizing aspirin in the lab, what is the purpose of the sulfuric acid in the mixture? ((Mixed 2g salicylic acid, 5mL acetic anhydride, 5 drops concentrated sulfuric acid,…
When table sugar (sucrose, CiHzOu) dissolves in water, which type(s) of and suga
When table sugar (sucrose, CiHzOu) dissolves in water, which type(s) of and sugar molecules occur(s)? I. hydrogen bonding I po III. covalent bonding A. Iand II only B. and III onl…
When table sugar is burned in air, carbon dioxide and water vapor are products,
When table sugar is burned in air, carbon dioxide and water vapor are products, as shown by the following balanced chemical equation: C_22H_22O_11() + 12 O_2(g) rightarrow 12CO_2(…
When talking about general data structure design, my lecture notes talk about on
When talking about general data structure design, my lecture notes talk about one of the concerns being cost of operations. As well as the individual cost, it mentions amortized c…
When tert-pentylbromide is treated with 80% ethanol, the following amounts of al
When tert-pentylbromide is treated with 80% ethanol, the following amounts of alkene products are deteced on ananlysis: CH3 | …
When the C-language code is generated, -1 is used to create the initialization s
When the C-language code is generated, -1 is used to create the initialization state for each of the Tick functions. The challenge is if this code is used with C++ compiler, there…
When the NaOCl found in a dilute solution of bleach is reacted with I^- the solu
When the NaOCl found in a dilute solution of bleach is reacted with I^- the soluble I_3^- is produced according to the equation below. 3I^- + OCl^- + 2H^+ rightarrow I^- + Cl^- + …
When the NaOH solution is added, Cu(OH)_2 does not precipitate immediately. What
When the NaOH solution is added, Cu(OH)_2 does not precipitate immediately. What else present in the reaction mixture from Part A reacts with the NaOH before the copper(II) ion? E…
When the S,0, is completely used up, then 12 begins to accumulate. It combines w
When the S,0, is completely used up, then 12 begins to accumulate. It combines with starch to form a dark blue complex, so the "end-point" of the "titration" occurs when the solut…
When the S,0, is completely used up, then 12 begins to accumulate. It combines w
When the S,0, is completely used up, then 12 begins to accumulate. It combines with starch to form a dark blue complex, so the "end-point" of the "titration" occurs when the solut…
When the Vmax and the Km of an enzyme are not known, it is essential to determin
When the Vmax and the Km of an enzyme are not known, it is essential to determine the enzyme's initial velocity (Vo) at different [S]. To determine the initial velocity, one would…
When the actual measured mass of an atom is compared to the sum of the component
When the actual measured mass of an atom is compared to the sum of the component subatomic particles (electrons, protons, and neutrons), the mass of the isotope is always smaller.…
When the adhesive forces between a liquid and the walls of a capillary tube are
When the adhesive forces between a liquid and the walls of a capillary tube are greater than the cohesive forces within the liquid: a) The liquid level in a capillary tube will ri…
When the battery is discharging (operating) Li^+ ions move out of the anode and
When the battery is discharging (operating) Li^+ ions move out of the anode and migrate through the electrolyte where they enter the spaces between the cobalt oxide layers, reduci…
When the body runs out of glucose, the brain, heart, and skeletal muscle can use
When the body runs out of glucose, the brain, heart, and skeletal muscle can use ketone bodies for their metabolic needs. When this happens, the body switches over to a metabolic …
When the carbonyl group of a neutral ketone is protonated, Select one or more: t
When the carbonyl group of a neutral ketone is protonated, Select one or more: the resulting species becomes more electrophilic. the product forms a yellow/orange precipitate, the…
When the cations Na^+, K^+, Rb^+, Cs^+ are combined with chloride ion in the gas
When the cations Na^+, K^+, Rb^+, Cs^+ are combined with chloride ion in the gas phase to form ion pairs, which pair formation releases the greatest amount of energy? NaCI KCI RbC…
When the cells of the skeletal vacuole of a frog were placed in a series of NaCl
When the cells of the skeletal vacuole of a frog were placed in a series of NaCl solutions of different concentrations at 298 K, it was found that the cells remained unchanged in …
When the chemical reaction 3H_2(g) + 2(g) rightarrow 2NH_3 (g) is run in a 1.0-L
When the chemical reaction 3H_2(g) + 2(g) rightarrow 2NH_3 (g) is run in a 1.0-L vessel with a movable piston (assume perfectly stoichiometry amounts of hydrogen and nitrogen gass…
When the compound A2X(g) is placed in a flask at 1200 degrees C it dissociates i
When the compound A2X(g) is placed in a flask at 1200 degrees C it dissociates into A2(g) and X2(g) as shown in the following equation. 2A2X(g)<----> 2A2(g) + X2 (g) …
When the compound shown below undergoes E1 elimination, base-abstraction of a hy
When the compound shown below undergoes E1 elimination, base-abstraction of a hydrogen ion from the initially formed carbocation forms the major product When the compound shown be…
When the concentration of A is doubled, the rate for the reaction: 2A + B 2C qua
When the concentration of A is doubled, the rate for the reaction: 2A + B 2C quadruples. When the concentration of B is doubled the rate remains the same. Which mechanism below is…
When the concentration of reactant is increased for a system at equilibrium, wha
When the concentration of reactant is increased for a system at equilibrium, what is the effect on the rate of the forward reaction? Does an increase in the rate of reactant have …
When the crystalline structure of a material changes from body centered cubic to
When the crystalline structure of a material changes from body centered cubic to hexagonal close-packed (and temperature remains about the same) one expects the density to increas…
When the dipole moment of a dipole ina uniform electric field rotates to become
When the dipole moment of a dipole ina uniform electric field rotates to become more nearly aligned withthe field: please explain.. When the dipole moment of a dipole in a uniform…
When the equation below is balanced for acidic aqueous solution, what is the coe
When the equation below is balanced for acidic aqueous solution, what is the coefficient of H+? VO43- + Fe2+ = > VO2+ + Fe3+
When the equation below is balanced for acidic aqueous solution, what is the coe
When the equation below is balanced for acidic aqueous solution, what is the coefficient of H+? VO43- + Fe2+ = > VO2+ + Fe3+
When the experimental values that I got are 1. Weight of inner air, separating f
When the experimental values that I got are 1. Weight of inner air, separating funnel and rubber stooper (g) = 124.796g 2. Weight of sepearting funnel and the rubber stopper fille…
When the following gas reaction reaches equilibrium, at a certain temperature, t
When the following gas reaction reaches equilibrium, at a certain temperature, the moles fractions of the four reactive species satisfy the following relation (we will use "y" for…
When the following molecular equation is balanced using the smallest possible in
When the following molecular equation is balanced using the smallest possible integer coefficients, the values of these coefficients are: mercury(II) oxide (s) mercury (l) + oxyge…
When the following oxidation-reduction in basic solutions is balanced, which is
When the following oxidation-reduction in basic solutions is balanced, which is the lowest whole number coefficient for OH^-, and on which of the balanced equation should it appea…
When the following oxidation-reduction reaction in acidic solution is balanced,
When the following oxidation-reduction reaction in acidic solution is balanced, what is lowest whole-number coefficient for K^+ (aq)? A) 1 B) 2 C) 3 D) 4 E) 5 When the following o…
When the following oxidation-reduction reaction in acidic solution is balanced,
When the following oxidation-reduction reaction in acidic solution is balanced, what is the lowest whole-number coefficient for K'(aq) ? K(s) + Cu^2+ (aq) + Cu(s) 1 2 3 4 5 When t…
When the following oxidation-reduction reaction in basic solution is balanced, w
When the following oxidation-reduction reaction in basic solution is balanced, what is the lowest whole-number coefficient for OH^-, and on which side of the balanced equation sho…
When the following reactions come to equilibrium, does theequilibrium mixture co
When the following reactions come to equilibrium, does theequilibrium mixture contain mostly reactants or mostlyproducts? Part A mostly reactants mostly products mostly reactants …
When the following redox reaction is balanced and the coefficients are reduced t
When the following redox reaction is balanced and the coefficients are reduced to their lowest whole-number terms, which statement is true? MnO4-(aq) + Sn2+(aq) MnO2(s) + SnO2(s) …
When the following redox reaction is balanced in acidic solution, which of the a
When the following redox reaction is balanced in acidic solution, which of the answer choices represent the correct coefficients for As2O3 and NO3 -? As2O3 (aq) + NO3 - (aq) ? H3A…
When the following redox reaction is balanced in acidic solution, which of the a
When the following redox reaction is balanced in acidic solution, which of the answer choices represent the correct coefficients for As2O3 and NO3 -? As2O3 (aq) + NO3 - (aq) ? H3A…
When the following solutions are mixed together, what precipitate (if any) will
When the following solutions are mixed together, what precipitate (if any) will form? Na2CrO4 (aq) + AgNO3 (aq) --> ______(s) NaOH(aq) + KNO3 (aq) --> _______(s) AgNO3(aq) +…
When the following two solutions are mixed: The mixture contains the ions listed
When the following two solutions are mixed: The mixture contains the ions listed below. Sort these species into spectator ions and ions that react. Drag the appropriate items to t…
When the following two solutions are mixed: The mixture contains the ions listed
When the following two solutions are mixed: The mixture contains the ions listed below. Sort these species into spectator ions and ions that react. Drag the appropriate items to t…
When the gases dihydrogen sulfide and oxygen react , they form the gase sulfur d
When the gases dihydrogen sulfide and oxygen react , they form the gase sulfur dioxide and water vapor. a) write the balanced equation for the reaction. b) How many grams of oxyge…
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