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Is breaking of brick a chemical or physical change?
Breaking a brick is a physical change because it does not alter the chemical composition of the brick. The bricks remain chemically the same even after breaking into smaller pieces.
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.
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.
Is breaking a stick of gum a physical or chemical change?
Breaking a stick of gum is a physical change because the gum still retains its chemical composition even after it has been broken into smaller pieces. The breaking process only affects the physical properties of the gum, such as its shape and size, but does not change its chemical composition.
Why is breaking chalk a physical change?
Besides for rearranging the glass pieces, one is not actually changing the chemical formula of the glass. Much like grinding NaCl, the crystals get smaller but the chemical remains the same.
Is breaking of brick a chemical or physical change?
Breaking a brick is a physical change because it does not alter the chemical composition of the brick. The bricks remain chemically the same even after breaking into smaller pieces.
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.
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 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.
Is breaking a mirror an action with new chemical properties?
No. After breaking the mirror, the chemical properties of the remaining pieces are the same as the intact mirror. This is a physical change, not a chemical change.
Is a glass breaking a chemical change?
A chemical change is when the molecules of an object / solution are changed. A physical change is when the object / solution is altered without molecular change. Breaking glass is a physical change.
Is breaking glass is a physical or chemical change?
Purely physical.
Is breaking a stick of gum a physical or chemical change?
Breaking a stick of gum is a physical change because the gum still retains its chemical composition even after it has been broken into smaller pieces. The breaking process only affects the physical properties of the gum, such as its shape and size, but does not change its chemical composition.
Is this statement true Ice being broken into small bits is an example of a chemically change?
No it is not, as the ice will still retain its chemical properties. This is an example of a physical change. Remember that the indicators of a chemical change are a change in colour, a change in odour, a change in temperature, the formation of a precipitate, or a gas being given off.
Why is breaking chalk a physical change?
Besides for rearranging the glass pieces, one is not actually changing the chemical formula of the glass. Much like grinding NaCl, the crystals get smaller but the chemical remains the same.
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 making chalk dust a chemical change?
No, it is a physical, not chemical change.
