Question

This redox half-reaction will be balanced if: S406² — 25₂032- a) 2 electrons are added to the reactant side b) 2 electrons are added to the product side c) 4 electrons are added to the reactant side d) 4 electrons are added to the product side

Answer 1

This is a redox half-reaction that needs to be balanced. The half-reaction is:

S4O6²- → SO3²-

To balance this half-reaction, we need to add electrons to one side of the equation. The number of electrons added must be equal to the difference in oxidation states of the element being oxidized and reduced. In this case, sulfur is being oxidized from +3 to +4, so we need to add two electrons to the reactant side.

Therefore, the correct answer is a) 2 electrons are added to the reactant side .

Step-by-step explanation: