Yes, but not a chemical change.
yes
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.
Malleability is a physical property of a material, not a change. It refers to the ability of a material to be hammered or pressed into a different shape without breaking.
This is a physical change.
Hammered copper can be used in many decorative or useful items. The effect of hammering the copper is to make a dented effect all over the copper. This can catch the light and make an attractive surface.
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.
yes
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 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.
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.
The melting of copper is a physical change because it involves a change in the state of matter from solid to liquid without altering the chemical composition of copper itself.
Using a Bunsen burner to heat copper is a physical change. The copper undergoes a change in its physical state from solid to liquid without changing its chemical composition.
Malleability is a physical property of a material, not a change. It refers to the ability of a material to be hammered or pressed into a different shape without breaking.
Stretching wire into copper is a physical change because the composition of the material remains the same. The rearrangement of copper atoms in the wire does not alter the chemical identity of the substance.