No, it is a pure substance.
Copper wire is homogeneous.
Brass is a mixture of copper and zinc. It is not an element on its own.
Copper is a element. It is neither compound nor mixture.
copper is a substance
It should be a "pure" substance, but its really an alloy.
Copper is an element, not a molecule or a mixture. It is a pure substance made up of only copper atoms.
NO!!! Because if it was a mixture it would NOT be pure.
Copper metal is an element and thus a pure substance.
Neither. Copper is not a mixture at all. It is a pure element.
Neither, copper is an element.
Neither, copper is an element.
No, a copper sulfate solution is a homogeneous mixture where copper sulfate is dissolved in water.