it is a Chemical- corrossion processes cause electrochemical changes
mohamed ihab abdel hamid
chemical
Corrosion is a chemical change
Corroding
its a physical change
Yes, it is. You aren't altering the chemical composition at all - it's still copper - you are merely changing its shape.
If you meant to ask, "Is stretching copper into wire a physical or chemical change", it's a physical change.
Cutting a piece of copper in half is a physical change because it only alters the physical appearance of the copper without changing its chemical composition.
Yes, hammered copper is a physical change. When copper is hammered, its shape and size change, but its chemical composition remains the same.
Yes this is a physical change because they are melting it and then it's being changed by the heat of the torch but heat is a physical change.
All except the corroding of iron do NOT change the substance involved.
Pounding a sheet of copper into a bowl is a physical change because the copper is still the same substance before and after the change. The change in shape does not alter the chemical composition of the copper.
It is a physical change since...well...no other chemicals are involved...copper is still copper.