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Question 0

What is a rxn mechanism also known as?

Answer 0

Pathway

Question 1

Define rxn mechanism

Answer 1

A series of steps that must progress in order so that a rxn can proceed

Question 2

What might a rxn mechanism involve?

Answer 2

Intermediate species

Question 3

Describe intermediate species

Answer 3

Temporarily formed compounds or ions

Question 4

Explain a 1 step pathway + example

Answer 4

Happens immediately in a single step

HCl + NaOH –> NaCl + H2O

Question 5

3 step pathway ex

Answer 5

I2 –> 2I-
I- + H2–> H2I
I- + H2I–> 2HI

Question 6

Explain rate determining step + abb

Answer 6

Step that will take the longest & determine overall rate & RDS

Question 7

For reactions to “go” particles must…

Answer 7

Collide, be properly oriented & have enough nrg for valence e’s to merge

Question 8

Why do reactions happen?

Answer 8

Rxn is thermodynamically favored

Question 9

Define energy of activation

Answer 9

Minimum initial nrg input required to transform reactants to intermediate species

Question 10

What is intermediate species AKA

Answer 10

Activated complea

Question 11

Define activated complex

Answer 11

A transitional structure that results from an effective collision