Redox Flashcards
what is oxidation
loss of electrons
what is reduction
gain of electrons
what is a agent
helper in the process
what happens to a reducing agent
lose electrons (because it’s been oxidised)
what happens to an oxidising agent
gains electrons (because its been reduced)
what is the oxidising state of uncombined elements
0
what is the sum of all of the oxidising states in compound
0
what is the oxidising state of a simple ion (like Mg2+)
equal to its charge
what is the sum of all of the oxidising states in a complex ion (like NH4+)
equal to its charge
what is the oxidising state of hydrogen in compounds
+1
what is the oxidising state of hydrogen if its bonded to a metal
-1
what is the oxidising state of oxygen
-2
what is the oxidising state pf oxygen if its in the compound hydrogen peroxide (H2O2)
-1
what is the oxidising state of fluorine
-1
what is the oxidising state of chlorine
-1
in which order do you assign oxidising states
Under uncombined metals
My metals
Face fluorine
Here’s hydrogen
Our oxygen
Chin chlorine
Work out oxidising state of Cl
in FCl
+1
Work out oxidising state of Al in LiAlH4
+3
Work out oxidising state of Cr in (Cr2O7)2-
+6
