Help with redox reaction equations Plz

[python01]

I have to do lab at school for which I will have to do redox equations but I am not sure where to start at the moment so hopefully someone can help me with them so I understand what I am doing in the lab.
Here are three different reactions for which I need the equations:
Reaction 1:
Solution 1: 20 drops of 0.05M Fe(II) and 2 drops of 6M H₂SO₄
Solution 2: Count drops of 0.01M KMnO₄
Reaction 2:
Solution 1: 20 drops of 0.05M Na₂C₂O₄ and 2 drops of 6M H₂SO₄
Solution 2: Count drops of 0.01M KMnO₄
Reaction 3:
Solution 1: A few crystals of KNO₂, 20 drops of distilled water and 2 drops of 6M H₂SO₄
Solution 2: Count drops of 0.01M K₂Cr₂O₇

Can anyone suggest equations for these reaction so I can figure out how the H₂SO₄ will affect these reactions. I am not sure where to start.

[chempass]

Reaction 1:
Solution 1: 20 drops of 0.05M Fe(II) and 2 drops of 6M H₂SO₄
Solution 2: Count drops of 0.01M KMnO₄

FeSO₄ + KMnO₄ + H₂SO₄ = Fe₂(SO₄)₃ + K₂SO₄ + MnSO₄ + H₂O

Reaction 2:
Solution 1: 20 drops of 0.05M Na₂C₂O₄ and 2 drops of 6M H₂SO₄
Solution 2: Count drops of 0.01M KMnO₄

Na₂C₂O₄ + KMnO₄ + H₂SO₄ = Na₂SO₄ + K₂SO₄ + MnSO₄ + CO₂ + H₂O

Reaction 3:
Solution 1: A few crystals of KNO₂, 20 drops of distilled water and 2 drops of 6M H₂SO₄
Solution 2: Count drops of 0.01M K₂Cr₂O₇

KNO₂ + K₂Cr₂O₇ + H₂SO₄ = KNO₃ + K₂SO₄ + Cr₂(SO₄)₃ + H₂O

The equations that I wrote above are NOT balanced
You may balance these equations here