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What else can I help you with?
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.
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 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
What toy shows a physical change?
A toy that shows a physical change is a stretchy rubber ball. When you stretch the ball, it changes shape and size temporarily, but once you release the tension, it returns to its original form. This change is physical because the molecules in the rubber are only rearranging themselves, not undergoing a chemical reaction.
The tires on the car seem to be getting flat when the weather turns cold physical or chemical change?
The air pressure decreasing in the tires due to colder temperature is a physical change. The rubber in the tires contracts when it gets cold, causing the pressure to drop, but no new substances are formed.
Is stretching a rubber band physical change or chemical?
Stretching a rubber band is a physical change.
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?
Stretching a rubber band is a physical change because it alters the shape and size of the rubber band without changing its chemical composition. The rubber band can return to its original state by releasing the tension, demonstrating that no new substances were formed during the stretching process.
Why stretching of rubber band is physical change?
Stretching of a rubber band is a physical change because the molecular structure of the rubber remains the same even after it is stretched. No new substances are formed during stretching, and the rubber band can return to its original shape and properties once the force is removed.
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.
Is a flat tire a physical change?
Yes, a flat tire is considered a physical change because the rubber material in the tire is simply being compressed and there is no change in the chemical composition of the rubber.
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.
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 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
