1. Which of the following reactions occurs most rapidly at standard conditions? A. 2Fe(s) + O2(g) → 2FeO (s) B. CaO (s) + 3C (s) → CaC2(3) + CO (8) C. SnO2(s) + 2CO(g) → Sn(s) + 2CO2(g) D. 2AgNO3(aq) + Na₂CrO 4(aq) → Ag₂ CrO4(s) + 2NaNO3(aq) 2. Consider the following reaction: CaO (s) + 2HCl(aq) →→ CaCl2(aq) + H₂O(1) ->> Which of the following could be used to measure the rate of this reaction? A. change in acidity B. change in volume C. change in pressure D. change in total mass 3. In order for a collision between reactant particles to be successful A. a AH must be positive. B. the system must be closed. C. there must be sufficient KE. D. the change in KE must be less than the change in PE. (

1. Which of the following reactions occurs most rapidly at standard conditions? A. 2Fe(s) + O2(g) → 2FeO (s) B. CaO (s) + 3C (s) → CaC2(3) + CO (8) C. SnO2(s) + 2CO(g) → Sn(s) + 2CO2(g) D. 2AgNO3(aq) + Na₂CrO 4(aq) → Ag₂ CrO4(s) + 2NaNO3(aq) 2. Consider the following reaction: CaO (s) + 2HCl(aq) →→ CaCl2(aq) + H₂O(1) ->> Which of the following could be used to measure the rate of this reaction? A. change in acidity B. change in volume C. change in pressure D. change in total mass 3. In order for a collision between reactant particles to be successful A. a AH must be positive. B. the system must be closed. C. there must be sufficient KE. D. the change in KE must be less than the change in PE. (

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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G.59.
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The standard reaction free energy AG = 890. kJ for this reaction: ALO3(s) + 3H₂(g) 2 Al(s) + 3H₂O(g) Use this information to complete the table below. Round each of your answers to the nearest kJ. reaction — Al(s) + H₂O(g) → = ALO, (-) – È F¹₂ (3) –Al₂O; (3) + H₂(g) — — Al(s) – H₂O(g) 2Al(s) + 3H₂O(g) → ALO₂ (s) + 3H₂(g) 4 AG 0 OKJ X
The potassium-ion concentration in blood plasma is about 5.0 * 10-3 M, whereas the concentration in a muscle-cell fluid is much greater (0.15 M ). The plasma and intracellular fluid are separated by the cell membrane, which we assume is permeable only to K+. What is the minimum amount of work that must be used to transfer this K+?
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3. If 20 g of KNO3 is dissolved in 50 mL of water at 4 °C, is the system in equilibrium? If not, what spontaneous process will occur? What is the value of AG (NOT AG) for the system, as prepared, before any reaction occurs? KNO3, K², NO₂ (44) NO3(aq) AH R
Consider the unbalanced equation for the neutralization of acetic acid: αHC2H3O2(aq)+βBa(OH)2(aq) →γH2O(l)+δBa(C2H3O2)2(aq) Balance the equation. Give your answer as an ordered set of numbers α, β, γ, δ. Your answers should reflect the lowest whole-number ratio of coefficients.
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6. Eqn 1: ZnS(s) Eqn 2: S(s) + O2(g) →SO2(g) Eqn 3: ZnS(s) + O2(g)→ Zn(s) + SO>(g) → Zn(s) + S(s) AG° = +198.3 kJ AG° =-300.1 kJ The decomposition of zinc sulfide (represented by Equation 1) can be accomplished by coupling the reaction to the combustion of sulfur (represented in Equation 2), which results in the overall reaction represented in Equation 3. a. Determine the free energy change for the reaction represented in Equation 3. b. Explain why the reactions represented in Equations 1 and 2 are suitable for coupling to produce a thermodynamically favorable process.
Consider the reaction A →B with AH° = 60.55 kJ/mol,xn and the reaction B -→C with AH = 65.96 kJ/molxn- What should be the AH° in kJ/moln for the reaction A+ C→ 2 B? Report your answer to three decimal places.
What is the value of the equilibrium constant for the following reaction at 25C with a delta Grxn = -6.38 kJ? H2(g) + Cl2(g) <-> 2HCl(g)