Which is a chemical property of iron? A. It forms iron oxide (rust) when exposed to moisture and air. B. It is a gray–black metal that is hard to the touch. C. It has a melting point of 2795°F (1536°C). D. It is a good conductor of heat.
it corrodes after repeated exposure to excess moisture and dry air the rust itself can be turned back into iron after melting it and removing the waste