REDOX - oxidation numbers Flashcards
what is the oxidation state of an uncombined element
0
what is the oxidation state of
F in F-
-1
what is the oxidation state of
O in O2
0
what is the oxidation state of
I in I-
-1
what is the oxidation state of
I in I2
0
what is the oxidation state of Cu in Cu2+
+2
what is the oxidation state of an uncombined element
0
Define reduction in terms of elements
gain of electrons
define oxidation in terms of electrons
loss of electrons
define reducing agent in terms of electrons
electron donor
define agent in terms of electrons
electron acceptor
which atom is reduced in the reaction
Mg + S –> MgS
S
what is the oxidation state change of Mg
Mg + S –> MgS
0 to +2
which element changes oxidation state from +1 to 0
Mg + 2HCl –> MgCl2 + H2
H
what element changes oxidation state from 0 to +2
Mg + 2HCl –> MgCl2 + H2
Mg
identify the reducing agent
TiCl4 + 2Mg –> Ti + 2MgCl2
Mg
what is the oxidation state change of Ti
TiCl4 + 2Mg –> Ti + 2MgCl2
+4 to 0
what s the oxidation state of
Ba in BaCl2
+2
what is the oxidation state of
Li in Li2O
+1
what is the oxidation state of
P in P2O3
+3
what is the oxidation state of
C in CO
+2
what is the oxidation state pf
Cr in CrO3
+6
what is the oxidation state of
Sin SO3 2-
+4
what is the oxidation state of
Br in BrO3-
+5
what is the oxidation state of N in NO2
+4
what is the oxidation state of
P in Na3 PO4
+5
what is the oxidation state of Ti in TIO2
+4
what is the oxidation state of
Mn in MnO4-
+7
Identify the oxidising agent
TiCl4 + 2Mg –> Ti + 2MgCl2
TiCl4
identify the reducing agent
Mg + 2 HCl –> MgCl2 + H2
Mg
