The distinction between iron wire and copper wire
It's my pleasure to answer for you:Method 1: respectively, the wire, copper wire into dilute hydrochloric acid or dilute sulfuric acid, there is a bubble out of the wire.Method 2: put them in copper chloride solution, the metal surface is red solid precipitated wire.Method: 3 magnet, do not explain.Method 4: color reaction, copper wire is green.
There is also a method of cattle comparison, everyone is using, that is, look directly at the appearance, red or yellow is copper, silver white is iron
Of course, the use of iron magnetic, with magnets, chemical methods, as well as the use of metal active ah, dissolved in the strong acid is the iron slightly;
