1) Write balanced chemical equation for the oxidation of Fe^2+(aq) by S2O6^2-(aq)?
2)Write balanced chemical equation for the oxidation of Fe^2+ by N2O
3)Write balanced chemical equation for the oxidation of Fe^2+ by VO2+
To write balanced chemical equations for the given reactions, we need to determine the oxidation states of each element involved in the reaction. Here's how you can do it:
1) Oxidation of Fe^2+(aq) by S2O6^2-(aq)
To determine the oxidation states, we assign x to the unknown oxidation state of Fe in this case.
Fe^2+ + S2O6^2- -> Fe^3+ + SO4^2-
To balance the equation, we need to count the number of each type of atoms on both sides. We have:
Fe: 1 -> 1
S: 2 -> 1
O: 6 -> 4
So: 1 -> 1
Now, we can balance the equation by adding coefficients:
2Fe^2+ + S2O6^2- -> 2Fe^3+ + 2SO4^2-
Therefore, the balanced equation for the oxidation of Fe^2+(aq) by S2O6^2-(aq) is:
2Fe^2+(aq) + S2O6^2-(aq) -> 2Fe^3+(aq) + 2SO4^2-(aq)
2) Oxidation of Fe^2+ by N2O
Fe^2+ + N2O -> Fe^3+ + N2
Again, assign x to the unknown oxidation state of Fe.
To balance the equation:
Fe: 1 -> 1
N: 2 -> 2
O: -2 -> 0
Now, we can balance the equation by adding coefficients:
2Fe^2+ + N2O -> 2Fe^3+ + N2
Therefore, the balanced equation for the oxidation of Fe^2+ by N2O is:
2Fe^2+(aq) + N2O(aq) -> 2Fe^3+(aq) + N2(g)
3) Oxidation of Fe^2+ by VO2+
Fe^2+ + VO2+ -> Fe^3+ + VO2+
Assign x to the unknown oxidation state of Fe.
To balance the equation:
Fe: 1 -> 1
V: 4 -> 5
O: -2 -> -2
Now, we can balance the equation by adding coefficients:
3Fe^2+ + 2VO2+ -> 3Fe^3+ + 2VO2+
Therefore, the balanced equation for the oxidation of Fe^2+ by VO2+ is:
3Fe^2+(aq) + 2VO2+(aq) -> 3Fe^3+(aq) + 2VO2+(aq)
Make sure to always double-check your answers and verify the oxidation states of all elements in the equation to confirm their accuracy.