Magnetizing doesn't involve a chemical reaction.
Physical.
Hammering hot iron into a sheet is a physical change. The process involves changing the shape and size of the iron without altering its chemical composition. The atoms in the iron remain the same, only the physical properties are altered.
Chemical change, oxygen binds with iron.
The final substance when iron is magnetized remains as iron. Magnetization does not change the fundamental composition of the iron material, but rather aligns the magnetic domains within the iron to create a magnetic field.
No. Rusting is a chemical change.
No. Iron is naturally magnetic.
physical change
No, magnetization is not a chemical reaction. Magnetic iron and non-magnetic iron are chemically the same substance. Magnetization is a process of alignment of atomic magnetic fields, which is a purely physical change, not a chemical change.
Melting is a physical change of iron.
Magnets are a result of physical changes, as they are created by aligning the magnetic domains of certain materials (such as iron) through processes like magnetization. This alignment creates a magnetic field without altering the chemical composition of the material.
Melting an iron rod is a physical change
Melting iron is a physical change because it does not alter the chemical composition of the iron. It is a change in state from solid to liquid without forming a new substance.
Iron is a chemical element, not a "change".
Iron is a chemical element, not a "change" !
Melting iron is a strictly physical change (change of state). The molten and solid iron would be identical by any chemical test or reaction.
physical
Heating is a physical change.