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When a piece of paper is torn into two pieces has it undergone a chemical change or a physical change?
ANSWER:Its a physical change. If you burned it and it became ash, its a chemical change. Physical change means it made no change on a molecular level. Its still paper, just in two separate pieces.It is a physical change, as the chemical property of the paper remains unchanged.
Is mixing of glass pieces and sand a chemical change or physical change?
it is a chemical change.
Is breaking coal into pieces chemical or physical change?
Breaking coal into pieces is a physical change because it does not alter the chemical composition of the coal. The coal remains composed of the same elements before and after being broken into pieces.
Is tearing a clothes into pieces a physical or chemical change?
Physical.
Is wood sawed and made into a toy box a chemical or physical change?
Physical-it is still wood, just in small pieces
If something is broken into tiny pieces is it a chemical or physical change?
Physical.
Is changing the size and shape of pieces of wood a chemical change true or false?
False. Changing the size and shape of pieces of wood is a physical change, not a chemical change. A chemical change involves the alteration of the chemical composition of a substance, while a physical change only affects the physical properties of a substance.
Is tearing paper into smaller pieces a chemical change?
no... its a physical change
Is cutting wood into 10 pieces a physical or chemical change?
That change would be physical, since the chemical identity of the wood has not been altered by cutting it.
Is a solid breaking up into many pieces a chemical change?
Disintegration can be a chemical change, but it depends on what kind it is. For example, sharpening a knife is a physical change, but burning a piece of wood is a chemical change.
When a bottle breaks into pieces does it undergo a chemical or physical change?
It is a physical phenomenon.
When a firecracker explodes giving off light and heat and breaking the wrapper into many pieces is that a physical change chemical change or both?
This is both a physical and chemical change. The explosion involves the release of energy (heat and light), which is a chemical change due to the breaking of chemical bonds. The breaking of the wrapper into many pieces is a physical change as it does not involve any change in the chemical composition of the materials.
