Start with What cause copper tarnished? - Copper and oxygen ions react to form copper oxide, but, if only restricted to dry air, this process is very slow. Moisture catalyzes the oxidation process, enhancing the reactivity of copper, and leading to corrosion or patina. Then How to clean tarnished on copper? - One of method that use Vinegar and salt ;see in the clip Then How Vinegar and Salt can remove tarnished.....? I thinks it's an oxidation process..... #ASKJO What will happen when we mix vinegar with bleach???? Can you show me the reaction,please? I read on the internet that said it's really dangerous for human, funji.....life "it's chlorine gas" ? ขอโทษทีครับพิมพ์เป็นภาษาอังกฤษมาแล้วถูกบ้างผิดบ้างขออภัย พิมพ์มาเกินครึ่งแล้วมันติดขึ้เกียจลบพิมพ์ใหม่
