Copper contain copper !!
yes. the amount of copper leeched should not be toxic
Both these alloys contain the common metal,copper
No, as copper does not contain iron.
Irish whisky.
There may be many that contain copper and oxygen in addition to other elements. The two that contain only copper and oxygen are copper (I) oxide and copper (II) oxide.
Copper itself an element
There will be some trace copper in salmon but not salmon is not a source of copper.
Copper oxides contain copper ond oxygen.
A crystal of copper sulfate contains copper, sulfur and oxygen.
The types of products that contain copper chloride are pesticides. An example of a product that contains copper chloride is Destruxol Lawn-a-gen.
Copper has a low hardness and is easily malleable. The element copper contains copper - it is often used for electrical conductivity.