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WorksheetsOxidation States
Total questions: 32
Worksheet time: 16mins
Compound 1. Na2SO3
The TOTAL OXIDATION STATE of this compound is
0
-1
-2
+2
Compound 1. Na2SO3
This compound contains the ion (SO3)?
The charge of (SO3)? is
-2
-1
0
+2
Compound 1. Na2SO3
Oxygen has an oxidation state of
-2
+2
-1
+1
Compound 1. Na2SO3
Na has an oxidation state of
+1, because Na is a Group 1 metal
-1, Na is a Group 1 metal
-2, Na is a Group 2 metal
+2, Na is a Group 2 metal
Compound 1. Na2SO3
The oxidation state of S is
+4
+6
+2
-2
Compound 2. CaSO4
The TOTAL OXIDATION STATE of this compound is
0
-1
-2
+2
Compound 2. CaSO4
This compound can be split in Ca? and (SO4) ? . The charge of (SO4) ? is
-2
-3
+1
+2
Compound 2. CaSO4
Ca has an oxidation state of
+2, because Ca is a Group 2 metal
+1, because Ca is a Group 1 metal
+3, because Ca is a Group 3 metal
-1, because Ca is a Group 17 metal
Compound 2. CaSO4
Oxygen has an oxidation state of
-2
-3
-1
+1
Compound 2. CaSO4
S has an oxidation state of
+6
-4
+4
-2
Compound 3. NH4 +
The total oxidation state of this compound is
+1
-1
0
-3
Compound 3. NH4 +
The oxidation state of H is
+1
0
-2
+4
Compound 3. NH4 +
The oxidation stae of N is
-3
+3
+5
-1
Compound 4. PO4 -3
The TOTAL OXIDATION STATE of this compound is
-3
0
-12
+5
Compound 4. PO4 -3
The oxidation state of Oxygen is
-2
-3
-8
+2
Compound 4. PO4 -3
The oxidation state of P is
+5
-5
-3
+3
Compound 5. MgCO3
The TOTAL Oxidation State is
0
-2
+2
-3
Compound 5. MgCO3
MgCO3 can be split in Mg? and (CO3) ? .
The total oxidation state of (CO3) ? is
-2
-4
+3
+2
Compound 5. MgCO3
Mg has an oxidation state of
+2, because Mg is a Gropu 2 metal
-1, because Mg is a Group 1 metal
+3, Nbecause mg is a Group 3 metal
+4, because Mg is a Group 4 Metal
Compound 5. MgCO3
Oxygen has an oxidation state of
-2
0
+2
-3
Compound 5. MgCO3
C has an oxidation state of
+4
-4
+2
-2
Compound 6. HCO3 -
The compound has a TOTAL Oxidation state of
-1
-2
+1
0
Compound 6. HCO3 -
The compound can be split in H? and (CO3)?
The TOTAL oxidation state of (CO3)? is
-2
+2
-1
0
Compound 6. HCO3 -
H has an oxidation state of
+1
-2
-3
-1
Compound 6. HCO3 -
Oxygen has an oxidation state of
-2
-1
+1
+2
Compound 6. HCO3 -
C has an oxidation state of
+4
-4
-3
+3
Compound 7. Zn SO4
Zn SO4 can be split in 2 ions: Zn? and (SO4) ?
The TOTAL oxidation state of (SO4) ? is
-2
-1
-3
+3
Compound 7. Zn SO4
Zn SO4 can be split in 2 ions: Zn? and (SO4) ?
The oxidation state of Zn ? is
+2
-2
+4
-4
Compound 8. Al2 (SO4)3
Al2 (SO4)3 can be split in 2 ions: Al? and (SO4)?
The TOTAL oxidation state of (SO4)? is
-2
-3
-6
0
Compound 8. Al2 (SO4)3
Al2 (SO4)3 can be split in 2 types of ions: Al? and (SO4)?
The TOTAL oxidation state of (SO4) is -2, therefore the oxidation state of Al is
+6
-3
+3
+2
Compound 4. PO4 -3
The oxidation state of Oxygen is
-2
-3
-8
+2
Compound 4. PO4 -3
The oxidation state of P is
+5
-5
-3
+3
