Vulcanizing
: A process to convert paper and paperboard in to a dense, hard, high strength paper by treating it with Zinc Chloride (ZnCl2) and Sulfuric Acid (H2SO4) which gelatinizes the surface cellulose.
Burning is oxidation, which means that the compounds in whatever is burning are being chemically combined with oxygen.
Burnt milk residue is chemically different from milk.
Tearing paper is a simple physical change; you are taking a whole and dividing it without changing its chemical composition. Burning paper is a chemical change; the paper chemically reacts with oxygen in the air in the presence of heat; oxidation.
Burning paper involves a chemical change where the paper is oxidized to create ash and smoke, releasing energy in the form of heat and light. Tearing paper is a physical change where the paper is physically separated into smaller pieces, but the paper itself remains unchanged chemically.
NO
No. The components of the mixture remain the same. They do not react chemically with one another.
No. The components of the mixture remain the same. They do not react chemically with one another.
No nonmetals don't change chemically when they are exposed to air! ;)
You've got another "chemical change here." One more and you've got a grand slam!
Burning is a chemical change.
If you mean chopping as in cutting(or such), then yes it is a physical change. It's a physical change because it hasn't chemically changed or reacted to a another variable.
Burning sulfur, or burning anything, is a chemical change.