redox Flashcards
1
Q
OILRIG
A
oxidation is loss
reduction is gain
of electrons
2
Q
oxdiation number one
A
- simple ions e.g. k+ , Mg 2+ equals to its charge
3
Q
oxidation number rule 2
A
unbonded elements e.g , Mg or H2 is equal to 0
4
Q
oxidation number rule 3
A
bonded H
e.g H20 its oxidation number is +1
in metal hydroxides e.g NaH its oxidation number -1
5
Q
oxidation number rule 4
A
bonded O e.g NaO its oxidation number is -2 expect in a peroxide its -1 and with fluorine its +2
6
Q
oxidation rule number 5
A
bonded fluorine is always -1
7
Q
what is the total oxidation of a molecule?
A
0
8
Q
what is the oxidation number in a ion
A
it is equal to the charge
9
Q
mash
A
metal + acid = salt + hydrogen
