Neither. Copper is not a mixture at all. It is a pure element.
Homogeneous
Bronze is a homogeneous mixture of copper and tin.
heterogenous
heterogeneous mixture
it is homogeneous because you mix it and you blend it
Homogeneous
copper is an ELEMENT therefore it is not a heterogeneous OR homogeneous mixture.
Bronze is a homogeneous mixture of copper and tin.
heterogenous
heterogenous
highly likely to be heterogeneous
hetergeneous
Bronze is a homogeneous mixture (alloy) of mainly copper and tin.
It is made of a homogeneous mixture of copper and zinc, called an alloy. An alloy is a mixture of metals.
heterogeneous mixture
Heterogenous
Salad dressing is a heterogeneous mixture.