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Worksheet 49 : Balancing redox equations . Topic 11
Set A: Balancing ionic redox equations: Objective: To test your ability to show conservation
in redox equations using coefficients
Balance the following ionic redox equations using the “smallest whole-number coefficients.”
REMEMBER: A Balanced equation must show conservation of atoms and charges.
That means, the sum of atoms and charges on both sides of the equation must be equal.
+
2+
1. Cu(s) + Ag ----------- > Cu + Ag
2. Hg + I ------------ > Hg + I2
-
2+
Teacher Preview Copy
3+ 2+
3. Fe + Ni ------------ > F + Ni
3+
2+
4. Fe + Sn ----------- > Fe + Sn
4+
2+
2+( 3+
Cr (aq) + Cu(s)
+
Cu aq) ----------- >
5. Cr(s) Teacher Preview Copy
4+
+
2+
6. Mn + Ti ------------ > Mn + Ti
7. Na + O -------------- > Na + O2
+
2-
3+ 2+ 3+
8. F + Al ------------- > Fe + Al
9. Cu(s) + H -------------- > Mg (aq) + H2(g)
2+
+
10. Al(s) + Cu (aq) -------------- > Al (aq) + Cu(s)
3+
2+
104 Copyright © 2010 E3 Scholastic Publishing. All Rights Reserved. Survivingchem.com
Set A: Balancing ionic redox equations: Objective: To test your ability to show conservation
in redox equations using coefficients
Balance the following ionic redox equations using the “smallest whole-number coefficients.”
REMEMBER: A Balanced equation must show conservation of atoms and charges.
That means, the sum of atoms and charges on both sides of the equation must be equal.
+
2+
1. Cu(s) + Ag ----------- > Cu + Ag
2. Hg + I ------------ > Hg + I2
-
2+
Teacher Preview Copy
3+ 2+
3. Fe + Ni ------------ > F + Ni
3+
2+
4. Fe + Sn ----------- > Fe + Sn
4+
2+
2+( 3+
Cr (aq) + Cu(s)
+
Cu aq) ----------- >
5. Cr(s) Teacher Preview Copy
4+
+
2+
6. Mn + Ti ------------ > Mn + Ti
7. Na + O -------------- > Na + O2
+
2-
3+ 2+ 3+
8. F + Al ------------- > Fe + Al
9. Cu(s) + H -------------- > Mg (aq) + H2(g)
2+
+
10. Al(s) + Cu (aq) -------------- > Al (aq) + Cu(s)
3+
2+
104 Copyright © 2010 E3 Scholastic Publishing. All Rights Reserved. Survivingchem.com