Products. I’m not 100% sure because I don’t fully understand what your asking but if you are talking as in chemical reactions, the answer is a product.
There are two big advantages of using molarity to express concentration. The first advantage is that it's easy and convenient to use because the solute may be measured in grams, converted into moles, and mixed with a volume.
The second advantage is that the sum of the molar concentrations is the total molar concentration. This permits calculations of density and ionic strength
I suppose it false, since the oxidation involves the loss or removal of the electrons such forth it does not gain electrons.
When a stable atom gains or loses its electrons then that’s when it becomes the ion.
