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Stretching a rubber band is a physical change.
Tyreek Marquardt
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Is stretching a rubber a physical change or chemical change?
physical change that is elasticity
Is Stretching a rubber band is a physical change?
Yes - it's still a rubber band.
Is stretching a rubber band a physical change Why?
Yes - it's still a rubber band.
Why is stretching a band a physical change?
Yes - it's still a rubber band.
When a chicken bone turns rubber like and flexible is it a chemical change or physical change?
I'm not sure. I think it is a chemical change.
Why is moving an object an example of physical change?
This is because the stretching does not change the chemical composition of the rubber band. Rubber bands are made of cross-linked polymers, long chain molecules connected to each other, that initially exist in a coiled state. Stretching forces these chains to lengthen, and aligns them in the direction of the applied stress, without forcing them to undergo any chemical change. Think about a whole mass of tangled yarn. When you pull the left and right sides of it, it will get longer and more of the yarn will be pointing from left to right, but the yarn will be the same yarn that initially was in the tangled state. Because it is the "same yarn" in the before and after states, it is a physical change.
Is a tire inflated with air a physical or chemical change?
physical change. the rubber is still rubber and the air is still air, so NO chemical change has occured
Changing water to ice is an example of a chemical change true or false?
I'd say no. Melting just changes the physical properties. Example: A rubber ball. If you melt a rubber ball it will still be rubber, just in a different form.
Why is erasing a pencil mark a physical or chemical change?
PHYSICAL
Is a exploding firecracker a physical or chemical change?
Although the firecracker gets its energy from a chemical reaction, most of the damage it does is physical from the shockwave coming from it as it explodes. Very near the explosion there will also be some chemical damage as the burning explosive can burn some its surroundings - and burns are a type of chemical damage.
Is there a change in the sound produced when you plucked the rubber band while stretching?
Yes
Is smoke formed from burning rubber a physical change?
Yes. Burning tires break down the rubber molecules into CO2 and other noxious gasses and other compounds are formed when the rubber lattice breaks into pieces as it oxidizes and burns.
