<span>The purpose of washing the product with NaOH is simply to
neutralize any acid which remained or leaked after the 1st initial
separation. The NaOH base reacts with the acid to form neutralization reaction products
which are soluble in water.</span>
I believe that answer is D The heat from the Bunsen burner transfers to the water and the pot, then the heat from the pot transfers to the person’s hand.
