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It doesn't matter if something is reversible or irreversible. it will not depend if it is a chemical or physical change. A physical change is when the composition of a substance remains unaltered (the particles stay the same) and no new substance is produced. Such as when you make a paper plane out of paper, the appearance changed, the particles stayed the same, no new substance was created, and the paper remains paper. A chemical change is when the composition of a substance is altered and a new substance is produced. Such as when paper is burned, the new substance produced is the carbon and other gases from the fire, and the composition of the paper changes, slowly disappearing.
It usually is unless you draw so rapidly that the heat of the friction heats the paper and causes it to smoke.
Wiki User
∙ 10y ago
Wiki User
∙ 12y agoUsing chalk on a piece of paper is a physical change.
Some chalk particles have been physically moved but they are still chalk.
Wiki User
∙ 12y agoChalk grinding is a physical change.
The chalk has physically changed size, but it is still chalk.
Wiki User
∙ 12y agoWriting with chalk is a physical change.
Wiki User
∙ 6y agoYes, it is a physical change.
aaima
lol
Cassandra
Wiki User
∙ 12y agoyes it is
Wiki User
∙ 11y agophysical
Anonymous
Physical change
Anonymous
Drawing on a Pierce of paper
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Is breaking a glass beaker chemical or physical?
Breaking, grinding, cracking are all examples of a physical change. The nature of the substance has not changed, just the size of the pieces has changed.
Is a well cooked steak chemical or physical change?
Cooking involve many chemical processes but also some physical processes as evaporation or melting.
Is breaking a glass window with a baseball a chemical change or physical change?
Breaking, grinding, cracking are all examples of a physical change. The nature of the substance has not changed, just the size of the pieces has changed.
Is painting a door a physical or chemical change?
Physical change of the paint, not the door.
When sandpaper smooths a piece of wood what kind of change is it?
this is a physical change
What kind change is grinding chalk into powder?
Grinding chalk really doesn't change the chalk except to make it into powder. So that makes it a physical change. It is much like ice melting into water.
What is the kindof the change represented by grinding chalk into a powder?
A physical change.
Is pulverized chalk a physical or chemical change?
Grinding chalk to chalk dust is a physical change because the texture and size may change but the its molecules are still the same.An example of chemical change is burning paper because ash is chemically different from paper.
Is grinding chemical or physical change?
grinding is a physical change
Is grinding sulfur a chemical or physical change?
Grinding sulfur is a physical change.
Is crushing a piece of chalk a chemical change or a physical change?
Crushing a piece of chalk is only a physical change. Chemically, it is still chalk.
Is grinding matter a physical change?
grinding any substance would by a physical change, because they are still that object
Is a piece of chalk crushed a physical change?
It is a physical change.
Grinding pepper a physical change?
yes grinding pepper is a phisical change
Does the grinding of food is a chemical change?
Grinding is a physical process.
Is mixing chalk with water a physical change or chemical change?
physical :)
Is grinding of meat is it a chemical or physical?
Physical change.
