Which type of equation can represent the oxidation occurring in a reaction?

1 double replacement reaction equation

2 half reaction equation

3 neutralization reaction equation

4 transmutation reaction equation

The answer to this question is the number "2. half-reaction equation".

The half-reaction equation is a type of equation that can represent the oxidation occurring in the reaction. It is a method of balancing the reactions and then adding an H + ions or isolated hydrogen ions.