1.7 Redox Flashcards
(15 cards)
Oxidation
Loss of electrons
Or
Increase in oxidation state
Reduction
Gain of electrons
Or
Decrease in oxidation state
Which elements have the same oxidation state in all compounds?
- All of group 1, group 2, and group 3
- Fluorine
Exceptions in oxidation state: Hydrogen
Metal hydrides -1
Exceptions in oxidation state: Oxygen
Peroxides -1
Bonded to F +2
Exceptions in oxidation state: Chlorine (Br and I)
Combined with oxygen +1 +3 +5 and +7
Oxo-anions
Ions containing an element and oxygen
Charge of nitrates
-1
Charge of chlorates
-1
Charge of iodates
-1
Charge of sulfates
-2
Charge of phosphates
-3
Oxidising agent
A species that accepts electrons
Reducing agent
A species that donates electrons
How can copper be extracted from copper sulfate?
Reduction with scrap iron