Chemistry
10th Edition
ISBN: 9781305957404
Author: Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher: Cengage Learning
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Transcribed Image Text:1.
List the four variables or factors that can affect the rate of reaction.
2.
The reaction
31-(aq) + H3ASO4(aq) + 2H*(aq) → 13-(aq) + H3AS03(aq) + H20(1)
is found to be first order with respect to each of the reactants. Write the rate law. What is the overall order?
3.
What is a "half-life". Why is this concept important?
4.
The rate of a reaction is quadrupled when the concentration of one reactant is doubled. What is the order of the reaction with
respect to this reactant?
5.
Examine the structures of the dyes discussed in the background information. What structural features to all of the dyes share?
Point this feature out on the insect extract Cochineal.
6.
Explain how bleach works to decolorize these dyes?
7.
Do you think that al food dyes will react at the same rate, or will the rates be different? Explain why you think this?
8.
What will we monitor to determine the rate of a reaction? In other words, what observations will we make and what what
measurements will we take?
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- Which of the following statements is the best explanation of how activation energy affects the rate of a chemical reaction? A. A high activation energy means molecules have less kinetic energy and hence rate of reaction will be slower. B. A high activation energy means molecules must have more kinetic energy to overcome it, and hence rate of reaction will be faster. C. A high activation energy means molecules have a lot of kinetic energy and hence rate of reaction will be faster. D. A high activation energy means molecules must have less kinetic energy to overcome it, and hence rate of reaction will be slower. E. A high activation energy means molecules must have more kinetic energy to overcome it, and hence rate of reaction will be slower.arrow_forwardList the four things, other than the nature of reactants, that can speed up reaction rate AND briefly describe how for each one.arrow_forwardWhat are three factors that affect ' rate of reactions'arrow_forward
- What the transition state is when there are two reactants?arrow_forwardWhich of the following will not affect the reaction rate of a reaction? Increasing the surface area of a solid reactant. use of a catalyst Changing the pressure of the air in the room O increasing the concentration of the reactants All affect the reaction rate of a reaction.arrow_forwardHow does a catalyst influence the rate of a reaction?arrow_forward
- Reaction rate increased by an increase of surface area of a reactant. One way to increase surface area is to add catalyst crush solid reactant into smaller pieces increase reactant's temperature increase reactant's concentrationarrow_forwardKINETICS AND EQUILIBRIUM Calculating average and instantaneous reaction rate from a... Hanı Here is a graph of the molarity of hydrogen peroxide (H,0,) in a reaction vessel during a certain chemical reaction. Use this graph to answer the questions in the table below. 0.03 0.025 0.0224 0.02- 0.0170 M 0.015 0.01 0.00875 0.005 10.0 15 20.6 25 30 Lン seconds created ロロ x10 Is H,0, being created or destroyed by the chemical destroyed 2. reaction? neither created nor destroyed Explanation Check 2021 McGraw-Hill Education. All Rights Reserved. Terms of Use Privacy | Accessibility PRED-1200-007(Spring 2021) 601 tv 20 MaćBook Air DD 000 F9 F10 F8arrow_forwardBecause there is stability in reactants, A) before two reactants can form products, they must overcome an activation energy B) they can form products if one reactant loses some activation energy C) they can never form products, unless there in a huge input of energy D) they can never form productsarrow_forward
- Explain the reason that increasing and decreasing the volume of a gas will affect the reaction rate.arrow_forwardClassify the actions based on how they could affect a reaction rate. Rate increases Rate decreases Rate is unaffected Answer Bank decrease the concentration of a reactant decrease the surface area of a solid reactant increase the temperature add a catalystarrow_forwardThe addition of a catalyst(s) is an extra step in the overall reaction. Which of the following provides a benefit towards the additional step? a. promotes the formation of the product faster b. raises the temperature of the reaction c. lowers the activation energy d. the first step will always be slower e. slows the overall reaction to minimize byproductsarrow_forward
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