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First, copper doesn't "turn green," it reacts with oxygen in the air to form copper oxide. This is a chemical change, because copper oxide is a substance that was not there before.
This is a physical change.
Yes, but not a chemical change.
chemical - due to copper contact with oxygen copper oxide
It is a physical change because only its shape changed, not its chemical composition.
It is a chemical change.
it is a chemical change because copper is one of the elements on the periodical table .
First, copper doesn't "turn green," it reacts with oxygen in the air to form copper oxide. This is a chemical change, because copper oxide is a substance that was not there before.
its a physical change
Copper sulfate is a substance, not a change. It can undergo physical and chemical changes.
If you meant to ask, "Is stretching copper into wire a physical or chemical change", it's a physical change.
If you meant to ask, "Is stretching copper into wire a physical or chemical change", it's a physical change.
Chemical.
Physical change
Physical change
Physical change
This is a physical change.