Copper metal is an element.
Copper metal is an element and thus a pure substance.
Copper metal is a pure substance, not a mixture. It is an element with the chemical symbol Cu.
Copper metal is an element and thus a pure substance.
Copper metal is an element and thus a pure substance.
Copper is a element. It is neither compound nor mixture.
Copper is an element, not a molecule or a mixture. It is a pure substance made up of only copper atoms.
Brass is a mixture of copper and zinc. It is not an element on its own.
Copper is an element.
Copper is an element. It is element 29 with the symbol Cu.
Copper is an element. It is element 29 with the symbol Cu.
copper is a substance
A copper door knob is a mixture, as it is made up of a combination of copper metal and potentially other elements or compounds depending on the specific door knob design (e.g., other metals for strength or decorative finishes).