9. Redox reactions Flashcards
1
Q
4 definitions of oxidation
A
Gain O
Lose H
Lose electrons
Increase in O number
2
Q
4 definitions of reduction
A
Lose O
Gain H
Gain electrons
Decrease in oxidation number
3
Q
What is a disproportionation reaction
A
A redox reaction whereby an element undergoes both oxidation and reduction simultaneously
4
Q
Common reducing agents
Previous notes has 5
Notes has 6 main ones
A
Carbon, carbon monoxide Hydrogen, hydrogen sulfide Potassium iodide, sulfur dioxide Metals Ammonia
C2O4 (2-) S2O3 (2-) H2O2 NO2 (-) I- Fe (2+)
5
Q
Common oxidising agents
Previous notes has 3
Notes has 7 main ones
A
Oxygen
Halogens
Acids
MnO4 (-) Cr2O7 (2-) IO3 (-) I2 Fe( 3+) H2O2 NO2 (-)
6
Q
What reactions aren’t redox reactions?
A
Neutralisation
Precipitation
Decomposition of metal carbonates
