Examples: melting, boiling, mechanical processing.
what are some physical changes when rusting metal is an example
fried chicken
Not all physical changes are reversible. Some physical changes, such as breaking a glass or cutting a piece of paper, are irreversible because they result in a permanent change to the material's structure. Reversible changes, like melting ice or boiling water, are changes that can be easily reversed by altering the conditions.
braking some of the leaves off.
Boy: deeper
hot cold
Scratching it
Not all physical changes are reversible because most times when such changes occur parts of the substance is lost to the environment.
Physical Changes
yes
Nickel II oxide exists as a solid at room temperature.
To extract nickel from nickel-plated stainless steel scrap, the scrap needs to undergo a process called electrolysis. In this process, the scrap is immersed in an electrolyte solution and an electric current is passed through it. This causes the nickel to dissolve into the solution, allowing it to be separated and extracted.