How about the difference between iron wire and copper wire?
The iron wire and copper wire are respectively placed in the set of gas cylinders with pure oxygen to be ignited; if there is a violent combustion, the sparks are shining and a large amount of heat is produced, namely the iron wire and the copper wire on the contrary
Put into dilute hydrochloric acid, the bubble is wire, the reaction is copper wire
Physical method of magnet. Reaction of iron, copper, on the other hand,Chemical methods are placed in dilute hydrochloric acid. Bubbles produce iron and vice versaThe flame is green copper.Oxygen combustion. The reaction is intense iron, no reaction to copper
