Assume that you have performed a sensitivity test using Antibiotics A and B against S. aureus bacteria. The zone around A is 15 mm in size; the zone around B is 30 mm in size. Does this mean that B is twice as effective against S. aureus as A? Explain.

the relative standard reduction potential of the half-cell in which reduction occurs; more positive than the other half-cell. reduction is a chemical process in which electrons are added to an atom or an ion; it always occurs accompanied by oxidation of the reducing agent.