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physical- only its appearance has changed.

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14y ago

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Why when a metal knife is sharpened it is called a physical change?

The sharpening of a metal knife blade is most often done in one or both of two ways:Removal of materialPlastic deformationThese both are physical changes. there might be a chemical sharpening but I do not know of it.


Is cutting a bar of sodium metal with a knife a chemical change?

Yes, cutting a bar of sodium metal with a knife is a physical change, not a chemical change. The chemical composition of the sodium metal remains the same before and after cutting. The change is only in the physical state of the metal.


What is a metal burr?

A metal burr is a small, thin edge of metal that is created when a piece of metal is machined. For example: when a chef's knife is sharpened, a thin piece of metal remains on the edge of the knife.


Sodium metal is cut with a knife a chemical or physical change?

Oh, dude, cutting sodium metal with a knife is totally a physical change. It's like slicing a stick of butter, but way more explosive if you're not careful. So yeah, technically correct answer, but like, maybe don't try it at home unless you're looking for a science experiment gone wrong.


Are the blender's blades able to be sharpened?

The blades can be sharpened, almost anything metal can be.


Is denting a piece of metal a physical or chemical change?

Physical. The properties of the metal do not change, and it can be undented.


Is pounded metal a physical or chemical change?

Physical change


Is hammering copper metal a physical or chemical change?

It is a physical change because you are changing the shape of the metal.


Is metal corroding a physical change or chemical change?

Corrosion is a chemical change


Is rusting a metal physical change?

Metal rusting (corrosion) is a chemical change.


Is shortening metal a physical or chemical change?

Of itself a metal can not be "shortened". However, a metal OBJECT such as a piece of metal wire can be shortened by cutting a piece off. This would be a physical change.


Why gallium metal is physical change?

yhe answer is the gallium is have nothing change thats why it is physical change