N,O, molecule forms in the first elementary step and reacts with 0, in the secondelementary step. N,0, is an intermediate, species that appear in the mechanismof the'reaction but not in the overall equation.EXERCISE1. Do chemical reactions usually occur in a single step?2. What does the overall balanced equation not tell us?3. How do overall reactions usually proceed?4. Explain an intermediatę species.5. Describe the steps that a mechanism of a reaction consists of.Chapter Review questions1. Explain the following:a) Reaction Rateb) Collision theoryc) Activation energyd) Catalyst2. In the following reaction:2Ca + 0,+2Cao1g of calcium is oxidized. The reaction takes 10 minutes to reach completion.What is the rate of the formation of CaO?3. 10 g of Mg reacts with 0.15 mol.dm3 solution of HCI at a temperature of25°C.a) Write a balanced chemical equation for the reaction.b) State two ways of increasing the average rate of production of H.2(g).4. A table of results is given below:TimeVolume of He)elapsedcm30.5171.0251.5302.0332.5353.035205

1 (a) Reaction rate: The reaction rate is the speed at which a chemical reaction takes place,…

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1. Explain the following: a) Reaction Rate b) Collision theory c) Activation energy d) Catalyst

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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Question

100%

N,O, molecule forms in the first elementary step and reacts with 0, in the second
elementary step. N,0, is an intermediate, species that appear in the mechanism
of the'reaction but not in the overall equation.
EXERCISE
1. Do chemical reactions usually occur in a single step?
2. What does the overall balanced equation not tell us?
3. How do overall reactions usually proceed?
4. Explain an intermediatę species.
5. Describe the steps that a mechanism of a reaction consists of.
Chapter Review questions
1. Explain the following:
a) Reaction Rate
b) Collision theory
c) Activation energy
d) Catalyst
2. In the following reaction:
2Ca + 0,
+2Cao
1g of calcium is oxidized. The reaction takes 10 minutes to reach completion.
What is the rate of the formation of CaO?
3. 10 g of Mg reacts with 0.15 mol.dm3 solution of HCI at a temperature of
25°C.
a) Write a balanced chemical equation for the reaction.
b) State two ways of increasing the average rate of production of H.
2(g).
4. A table of results is given below:
Time
Volume of He)
elapsed
cm3
0.5
17
1.0
25
1.5
30
2.0
33
2.5
35
3.0
35
205

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