oxidation and reduction Flashcards
1
Q
oxidising agent
A
species that accepts electrons
2
Q
reducing agent
A
species that lose electrons - electron donors
3
Q
what is redox also known as
A
electron transfer reaction
-when oxidation and reduction occur at the same time
4
Q
reduction of oxide by orogen
A
tungesten is extracted from tungsten oxide using hydrogen rather than carbon even through carbon is cheaper
wo3 + 3h2- w+3h2o
hydrogen Is reducing agent
hydrogen explosive
5
Q
Oxidation state
A
Tells you the total number of electrons it has donated or accepted
6
Q
More electronegative element
A
More negative oxidation state
7
Q
When there’s reduction what happens to oxidation number
A
Decreases
