redox reactions

Moderators: Chem_Mod, Chem_Admin

Margaret Akey
Posts: 80
Joined: Fri Sep 28, 2018 12:18 am

redox reactions

Postby Margaret Akey » Thu Feb 21, 2019 8:29 pm

how do you know which reaction is reduction and which is oxidation?

Sophia_Kiessling_2L
Posts: 61
Joined: Fri Sep 28, 2018 12:26 am

Re: redox reactions

Postby Sophia_Kiessling_2L » Thu Feb 21, 2019 8:42 pm

I follow the acronym OIL RIG which means oxidation is the loss (of electrons), reduction is the gain (of electrons). So whichever molecule/atom in the reaction is losing electrons (becoming more positive) is being oxidized and whichever molecule/atom is gaining electrons (becoming more negative) is being reduced.

Brandon_Tran_2E
Posts: 63
Joined: Fri Sep 28, 2018 12:23 am

Re: redox reactions

Postby Brandon_Tran_2E » Thu Feb 21, 2019 11:08 pm

Another tip is to figure out the oxidation numbers of each molecules first and then figure out which one loses/gains electrons with OIL RIG acronym. Oxidation numbers are basically the charges of an atom, ex) H is always 1+ Oxygen is usually 2- etc, the oxidation number of an ion is its charge... etc.

Tony Ong 3K
Posts: 63
Joined: Fri Sep 28, 2018 12:23 am

Re: redox reactions

Postby Tony Ong 3K » Fri Feb 22, 2019 12:04 am

an agent which is becoming oxidized essentially loses its electrons and becomes a more positive charge whereas ones that become reduced gain electrons and become more negatively charged


Return to “Balancing Redox Reactions”

Who is online

Users browsing this forum: No registered users and 1 guest