Shielded Metal Arc Welding, commonly called Stick welding. A shielded electrode passes a current between itself and the workpiece. Both the base-metal and the electrode are melted by the current and the electrode is consumed and deposited into the melted puddle forming the weldment.
Forming a compound is a chemical process.
Is fog forming a chemical or physical change
it is physical
yes it is a physical change
copper salts are forming on that electrode and diffusing into the potato flesh.
A physical change.
No it is a physical change!
It can be both.
Yes, it is. This is because there is a physical change. Being a liquid forming a solid. There is a chemical reaction when the hot water is added to the powder, forming a liquid, which is cooled, forming a solid
This would be a physical change.
It is a physical change: water changes from gas to solid.
It is physical as it is a simple change of state from gas to solid.
Physical. (Its still water.)
It is a physical change because is it changing the leaf? No, no it isn't so it is a physical change.