copper is a substance
Copper is an element.
Copper metal is an element and thus a pure substance.
Brass is a mixture
Copper is a pure substance.
No. Brass is an alloy of copper and zinc.
No, it is a mixture; rarely a drug is a pure substance.
it is substance
Copper metal is an element and thus a pure substance.
it is substance
Brass is a mixture
copper is an ELEMENT therefore it is not a heterogeneous OR homogeneous mixture.
No, it is a pure substance.
Copper is a pure substance.
No, copper chloride is a pure substance.
No, copper chloride is a pure substance.
Copper metal is an element and thus a pure substance.
Copper metal is an element and thus a pure substance.
Copper sulfate is a pure substance.