An alloy is a metal made by combining two or more metallic elements, especially to give greater strength or resistance to corrosion.
Una aleación es un metal hecho mediante la combinación de dos o más elementos metálicos, especialmente para dar mayor resistencia o resistencia a la corrosión.
Low pH = high acidity. HF has a very low pH, so when added to a solution, it will lower the pH of the solution and therefore make it more acidic. So the answer should be B.
