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Rate of Reaction Solutions Library

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49 solutions

Rate of Reaction

Q. Why might you want to heat a reaction? More than one answer may be correct. a) To decrease the rate of the desired reaction. b) To overcome the act...

Solved • May 1, 2020

Rate of Reaction

Q. Part BBy what factor will the rate of the reaction change if the pH decreases from 6.50 to 2.00? Express your answer numerically using two signific...

Solved • Apr 23, 2020

Rate of Reaction

Q. How would the following events affect the rate of the following general reaction? A + BC → ABCincreasing the temperatureincreasing the concentratio...

Solved • Apr 15, 2020

Rate of Reaction

Q. Classify the following actions based on how they would affect a reaction rate. decrease the concentration of a reactant increase the temperature ad...

Solved • Mar 31, 2020

Rate of Reaction

Q. Classify the actions based on how they could affect a reaction rate. -decrease the surface area of a solid reaction -add a catalyst-increase the te...

Solved • Mar 20, 2020

Rate of Reaction

Q. Which of the following reactions is most likely to proceed at the greatest rate?A. Zn(s) + S(s) → ZnS(s)      B. H2(g) + I2(s) → 2HI(g)C. Cu(s) + C...

Solved • Aug 26, 2019

Rate of Reaction

Q. Which combination of factors will affect the rate of the following reaction?Zn(s)  +  2HCl (aq)  →  ZnCl2(aq)  + H2(g)A. Temperature and surfaces o...

Solved • Aug 26, 2019

Rate of Reaction

Q. Consider the following factors:I. Concentration of reactants.II. Temperature of reactants.III. Surface area of reactants.The factors that affect th...

Solved • Aug 26, 2019

Rate of Reaction

Q. Which of the following reactions is the slowest at room temperature?a. Zn(s) + S(s) → ZnS(s)b. Ba2+(aq) + SO42-(aq) → BaSO4(s)c. NH3(g) + HCl(g) → ...

Solved • Aug 26, 2019

Rate of Reaction

Q. Temperature dependence of the rate constant for methyl isonitrile conversion to acetonitrile.Would you expect this curve to eventually go back down...

Solved • Dec 6, 2018

Rate of Reaction

Q. Temperature affects the rate of the chemiluminescence reaction in light sticks: The chemiluminescent reaction occurs more rapidly in hot water, and...

Solved • Dec 6, 2018

Rate of Reaction

Q. Consider the following graph of the concentration of a substance X over time.Is each of the following statements true or false?(a) X is a product o...

Solved • Dec 6, 2018

Rate of Reaction

Q. Estimate the number of moles of A in the mixture after 30 s.

Solved • Dec 6, 2018

Rate of Reaction

Q. The mechanism for the oxidation of HBr by O2 to form 2 H2 O and Br2 is shown below.4HBr(g)+O2(g)2H2O(g)+2Br2(g)HBr(g)+O2(g)HOOBr(g) HOOBr(g)+HBr(g)...

Solved • Dec 6, 2018

Rate of Reaction

Q. Most commercial heterogeneous catalysts of importance are extremely finely divided solid materials. Why is particle size important?

Solved • Dec 6, 2018

Rate of Reaction

Q. Determine the average rate of change in concentration of B from t = 0 s to t = 322 s. A → 2B

Solved • Oct 1, 2018

Rate of Reaction

Q. The rate of the following reaction is 0.660 M/s. What is the relative rate of change of each species in the reaction? A + 4B → 2C

Solved • Sep 27, 2018

Rate of Reaction

Q. If the rate of change of Cl2 is -0.0450M/S, what is the rate of change of NO? 2NO (g) + Cl2 (g) → 2NOCl (g)

Solved • Sep 27, 2018

Rate of Reaction

Q. Glucose (C6H12O6) is combusted according to the following equation: C6H12O6 (s) + 6O2 (g) → 6CO2 (g) + 6H2O (g) When glucose is being consumed at a...

Solved • Sep 18, 2018

Rate of Reaction

Q. If the rate of change of Cl2 is-0.0350M/s, what is the rate of change of NO? 2NO (g) + Cl2 (g) → 2NOCl (g) 

Solved • Sep 14, 2018

Rate of Reaction

Q. If the rate of change of Cl2 is -0.0575 M/s, what is the rate of change of NO? 2 NO (g) + Cl (g) → 2NOCl (g)

Solved • Sep 13, 2018

Rate of Reaction

Q. Consider the reaction 8H2S(g) + 4O2(g) → 8H2O(g) + S8(g) Δ[H2S]/Δt = -0.030 M/s A. Find Δ[O2]/Δt. B. Find Δ[H2O]/Δt. C. Find Δ[S8]/Δt.D. Find the r...

Solved • Sep 7, 2018

Rate of Reaction

Q. The rate of the following reaction is 0.480 M/s. What is the relative rat of change of each species in the reaction? A + 3B → 2C Δ[A]/Δt = Δ[B]/Δt ...

Solved • Sep 5, 2018

Rate of Reaction

Q. Be sure to answer all parts.Just as the depletion of stratospheric ozone threatens life on Earth today, its accumulation was one of the crucial pro...

Solved • Aug 29, 2018

Rate of Reaction

Q. a. If Δ[NO_3]/Δt is -21.51 x 104 mM/min in the following reaction, what is the rate of appearance of NO2? NO3(g) + NO(g) → 2NO2(g) Δ[NO2]/Δt = b. W...

Solved • Aug 14, 2018

Rate of Reaction

Q. The rate of the following reaction is 0.780 M/s. What is the relative rate of change of each species in the reaction? A + 4B → 2C Δ[A]/Δt = Δ[B]/Δt...

Solved • Jul 18, 2018

Rate of Reaction

Q. What is the overall reaction order for CO in a reaction with the following rate law? Rate = K[Cl2][H+]2[CO]2a. Secondb. Fourthc. Firstd. Fifthe. Th...

Solved • Jul 17, 2018

Rate of Reaction

Q. Select the factors that might influence the rate of a chemical reaction. a. changing the temperature b. changing the concentration of reactants c. ...

Solved • Jul 16, 2018

Rate of Reaction

Q. Consider the following reaction: 4NO2(g) + O2(g) → 2N2O5(g) The rate of this reaction can be expressed as

Solved • Jun 25, 2018

Rate of Reaction

Q. How would the following events affect the rate of the following general reaction?

Solved • Mar 15, 2018

Rate of Reaction

Q. How would the following events affect the rate of the following general reaction?A + BC → ABC

Solved • Mar 13, 2018

Rate of Reaction

Q. How do enzymatic catalysts increase the rates of reactions? a. They shift the reaction equilibrium toward the products.b. They promote the formatio...

Solved • Mar 2, 2018

Rate of Reaction

Q. Which of the following statements is true regarding a chemical reaction where the reactants and products are separated by an energy barrier?A.The r...

Solved • Dec 14, 2017

Rate of Reaction

Q. A chemist burns steel wool in air and observes that it burns slowly. She burns steel wool in pure oxygen and observes that it burst into flames, bu...

Solved • Jul 25, 2017

Rate of Reaction

Q. Which of the following has no effect on the rate of a reaction?       A) concentrations of reactants B) value of ΔH° C) activation energy D) te...

Solved • Sep 14, 2016

Rate of Reaction

Q. A factor that decreases the activation energy for a reaction: I)          decreases the rate constant II)        increases the rate constant III...

Solved • Sep 14, 2016

Rate of Reaction

Q. Given that the chemical reaction: S 8 (g) + 2 O2 (g) → 4 S2O (g) is found to have a rate law of: Rate = k [S8]. How many of the following actions w...

Solved • Sep 13, 2016

Rate of Reaction

Q. The value for the rate constant of a reaction can generally be expected to (A) decrease with increasing temeprature. (B) increase with increasing...

Solved • May 9, 2016

Rate of Reaction

Q. All of these changes increase the value of the rate constant for a reaction   except (A) decreasing the activation energy. (B) raising the temper...

Solved • Apr 26, 2016

Rate of Reaction

Q. Which of the following will lead to a DECREASE in the rate of an elementary chemical reaction? (Choose one answer.) (a) Decrease  the temperature. ...

Solved • Mar 15, 2016

Rate of Reaction

Q. Which of the following will lead to a DECREASE in the rate of an elementary chemical reaction? (Choose one answer.)(a) Increase the temperature.(b)...

Solved • Mar 14, 2016

Rate of Reaction

Q. Which is true for every reaction if the temperature is raised? a) chemical reactions favor products b) chemical reactions favor reactants c) no ...

Solved • Feb 21, 2016

Rate of Reaction

Q. Which one of the following changes would alter the rate constant (k) for the reaction: 2A + B → products? A. increasing the concentration of A B....

Solved • Feb 21, 2016

Rate of Reaction

Q. Given that the chemical reaction: S8 (g) + 2 O2 (g) → 4 S2O (g) is found to have a rate law of: Rate = k [S8]. How many of the following actions wo...

Solved • Feb 21, 2016

Rate of Reaction

Q. An increase in the temperature of the reactants causes an increase in the rate of reaction. The best explanation for this behavior is that as the t...

Solved • Feb 21, 2016

Rate of Reaction

Q. Which of the following would result in a decrease in the rate for the following reaction? N2 (g) + O2 (g) ⇌ 2 NO (g) a) Changing the temperature....

Solved • Feb 19, 2016

Rate of Reaction

Q. All of the following factors affect the initial rate of a reaction except?a) the nature of the reactantsb) the temperaturec) a catalystd) the conce...

Solved • Feb 19, 2016

Rate of Reaction

Q. The oxidation of propane is given by the reaction below: C3H8 (g) + O2 (g) → 3 CO2 (g) + 4 H2O (l) Which graph accurately shows the concentration...

Solved • Feb 19, 2016

Rate of Reaction

Q. Which of the following is not temperature dependent? 1. rate 2. k rate constant 3. t1/2, half-life 4. Ea, activation energy

Solved • Feb 19, 2016