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Is burning of plastic physical change or chemical change?
The burning of plastic is a chemical change. During the burning process, the molecular structure of the plastic is altered as it undergoes combustion, releasing energy in the form of heat and light.
Why are vitamins kept in colored bottles to prevent a chemical change of heat or light?
Vitamins are typically kept in colored bottles to protect them from exposure to light, which can degrade their potency by causing a chemical change. Light exposure can lead to oxidation of vitamins and reduce their effectiveness. Colored bottles help block out light and preserve the vitamins' stability.
Is that blackish red stuff that forms on old kectup bottles a physical change?
yes
Is the melting of plastic a chemical reation?
No, the melting of plastic is a physical change, not a chemical reaction. Melting simply involves a change in state from solid to liquid due to increased temperature, without any chemical bonds being broken or formed.
Is a plastic tray melting a physical or chemical change?
Melting of a plastic tray is a physical change because it is a reversible process where the plastic changes from a solid to a liquid state without any chemical changes occurring.
Is making plastic containers an example of physical change?
No, making plastic containers is a chemical change as it involves the conversion of raw materials (such as polymers) into a new substance (plastic containers) through a chemical reaction. Physical changes only alter the appearance or physical state of a substance without changing its chemical composition.
Is burning of plastic physical change or chemical change?
The burning of plastic is a chemical change. During the burning process, the molecular structure of the plastic is altered as it undergoes combustion, releasing energy in the form of heat and light.
Is plastic a physical change or a chemical change?
physical change
What are the reasons for the using glass-stopper bottles for acids and plastic stoppered bottles for bases?
If strong bases are present in the glass-stopper bottles, they may react with the glass and etch it or change the concentration of the base. Hence plastic-stopper bottles are used for bases.
When plastic is unrecognizable from a fire is it a chemical or physical change?
chemical
Is carving plastic a physical change or chemical change?
physical change
Is molding of plastic into toys a chemical change?
no its just physical change
What is a chemical change in a plastic soda bottle A. Burning B. Freezing C. Cutting D. Crushing?
A. Burning. Burning a plastic soda bottle would involve a chemical change because the plastic molecules are being broken down and rearranged into different chemical substances. Freezing, cutting, and crushing would not result in a chemical change, as the chemical composition of the plastic would remain the same.
These marshmallows are going through a chemical change. How is this different from a physical change?
These marshmallows are going through a chemical change. How is this different from a physical change?
When plastic is made is it a physical or chemical change and why?
it is a chemical change and i think maybe it is because you use heat to melt it and metal to shape it.
Why are vitamins kept in colored bottles to prevent a chemical change of heat or light?
Vitamins are typically kept in colored bottles to protect them from exposure to light, which can degrade their potency by causing a chemical change. Light exposure can lead to oxidation of vitamins and reduce their effectiveness. Colored bottles help block out light and preserve the vitamins' stability.
Is brewing a coffee chemical or physical change?
physical. the water being added simply soaks through the coffee, so there's no chemical change.
