Chemical Forums
1 Hour
1 Day
1 Week
1 Month
Forever
March 29, 2024, 01:06:23 AM
Forum Rules
: Read This Before Posting
Home
Help
Search
Login
Register
Chemical Forums
Chemistry Forums for Students
Undergraduate General Chemistry Forum
quick questions about redox reactons.
« previous
next »
Print
Pages: [
1
]
Go Down
Topic: quick questions about redox reactons. (Read 2185 times)
0 Members and 1 Guest are viewing this topic.
mrge
Very New Member
Posts: 1
Mole Snacks: +0/-0
quick questions about redox reactons.
«
on:
February 11, 2010, 05:19:36 AM »
My chemistry teacher is a lil on the crazy side.. she doesn't explain it very well so i jsut read the book to understand it on my own. To my understanding.. redox reaction basically is the process when a chemical loses an electron (oxidation) and gains an electron (reduction) correct?
For example
Iron turning to rust
Half reaction of Iron (oxidation)
Fe
Fe^+3 + -3e
Half Reaction of Oxygen (reduction)
2O + -4e
2O^-2
My question is.. theres are rules for assigning oxidation numbers ( the number of electrons the chemical gives away ) which makes sense.. but how would you figure out the numbers of electrons gained by certain chemicals. My book shows only the oxidation rules in the chapter.. is there a way to figure out reduction numbers?
Logged
Borek
Mr. pH
Administrator
Deity Member
Posts: 27633
Mole Snacks: +1799/-410
Gender:
I am known to be occasionally wrong.
Re: quick questions about redox reactons.
«
Reply #1 on:
February 11, 2010, 07:22:52 AM »
It is all about change - you calculate ON for reactant and product, and the difference in number of electrons, no matter if they are gained or given.
Logged
ChemBuddy
chemical calculators - stoichiometry, pH, concentration, buffer preparation,
titrations.info
Print
Pages: [
1
]
Go Up
« previous
next »
Sponsored Links
Chemical Forums
Chemistry Forums for Students
Undergraduate General Chemistry Forum
quick questions about redox reactons.