Physical change because the molecules have not changed to form a new substance.
physical, because its still glass
Purely a Physical Change.
Physical change because before and after breaking a glass, the glass is still SiO2 (Silicon): it's chemical makeup is not changed by the breakage.
It is a physical change. The resulting fragments of glass are still glass and of the same composition.
It is a chemical change. It keeps its same chemical composition and is in a reversible state. You can remelt it and once again, make glass.
Yes
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.
Breaking glass is a physical change, as it does not change the chemical composition of the material.
Breaking glass is a physical change because there is NO chemical difference ... from before to after.
Physical change because before and after breaking a glass, the glass is still SiO2 (Silicon): it's chemical makeup is not changed by the breakage.
No breaking glass is not a chemical reaction, which is what i think you mean. Breaking the glass does not alter the chemical makeup or properties of the glass. Instead breaking glass is a physical reaction because it does alter the size of the glass and its appearance
A glass breaking is a physical change because the chemical composition of the glass does not change.
Purely physical.
Yes, as it's still glass. There is no chemical/molecular 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.
It is a physical change. The resulting fragments of glass are still glass and of the same composition.
Breaking a glass jar changes the physical form of the glass without changing its chemical composition.
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.
It is a chemical change. It keeps its same chemical composition and is in a reversible state. You can remelt it and once again, make glass.