copper is definite element
copper is definite element
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.
Neither. Copper is not a mixture at all. It is a pure element.
Copper is a element. It is neither compound nor mixture.
copper is definite element
Brass is a mixture of copper and zinc. It is not an element on its own.
Copper metal is an element.
Copper is an element.
Copper metal is an element and thus a pure substance.
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 element. It is neither compound nor mixture.
copper is a substance
Neither, copper is an element.
Neither, copper is an element.
A mixture.