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Flashcards in 17 - 3 Deck (12):
0

Define rxn mechanism

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

1

What is a rxn mechanism also known as?

Pathway

2

What might a rxn mechanism involve?

Intermediate species

3

Describe intermediate species

Temporarily formed compounds or ions

4

Explain a 1 step pathway + example

Happens immediately in a single step

HCl + NaOH --> NaCl + H2O

5

3 step pathway ex

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

6

Explain rate determining step + abb

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

7

For reactions to "go" particles must...

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

8

Why do reactions happen?

Rxn is thermodynamically favored

9

Define energy of activation

Minimum initial nrg input required to transform reactants to intermediate species

10

What is intermediate species AKA

Activated complea

11

Define activated complex

A transitional structure that results from an effective collision