RedOx Reactions! Yikes!

Today we were introduced to another type of reactions in which the driving force is the transfer of electrons. Personally, I do not think that these redox reaction are any harder than the other types that we have learned.The only thing that it a little frustrating is that we have another set of rules to memorize in a day. I will provide a acronym to go along with the rules to help memorize them.

Redox Reactions:

http://sites.saschina.org/sabrinapx2016/files/2014/10/05-02_RedoxReactions_L-1lpckw6.jpg

General Overview of Today's lesson:

 

• Oil Rig- Oxidation is loosing; Reduction is gaining (in terms of electrons)
• +2 (oxidation state) 2+ (charge)
• If water reacts with an element in a problem, write water as HOH

In a Redox Reaction:

• the metal replaces the metal or the non-metal replaces the non-metal depending on what type of element is free 
• aka single replacement reaction
• reaction based on reactivity series; the element replacing the other in the compound be higher on the reactivity series in order for it to react

 

Example Problem
2Al(s) + 3I2(s) -----> 2AlI3(s)

• 2Al(s) has a state of 0
• 3I2(s) has a state of 0
• 2AlI3- 2Al has a state of +3 and I3 has a state of -1
• that means Al lost reactions making it positive which means it was oxidized or the reducing agent
• Iodine gained electrons making it negative which means it was reduced or the oxidation agent

Hopefully I will understand this well enough for the pre-lab quiz tomorrow because the lab sounds like it will be extremely interesting and I hope to be able to participate.

Oxidation Rules

Overall, today was not terribly hard by any means. I just have to memorize all the rules and I will be just fine.

Redox Reactions (video)

Quiz yourself
Redox Reactions