Final answer:
Naomi should inform Ming that the anode in electrotherapy treatments attracts negatively charged ions due to its positive charge, but from the options provided, the correct general answer is that the anode attracts positively charged ions.
Step-by-step explanation:
In response to Ming's question about the effects of using the anode to apply galvanic current, Naomi should explain that the anode is positively charged and therefore attracts negatively charged ions. This process is known as iontophoresis. In the context of electrotherapy treatments, using the anode can have different effects based on the type of treatment and the ions present, but generally, it is not correct to say the anode itself has a cooling effect on the skin. The most accurate answer from the options provided is that the anode attracts positively charged ions, but in actual electrochemical cells, the anode attracts negatively charged ions like chloride ions (Cl-).
Naomi should respond that the anode attracts positively charged ions. In electrotherapy, the galvanic current is used to introduce ions into the skin. The anode, which is the positive electrode, attracts positively charged ions, such as calcium and magnesium, to the skin. These ions can have various effects on the skin, such as enhancing cell metabolism and promoting collagen production.
the correct option is B