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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.
True melting is not a chemical reaction; instead it is a physical one. Many polymers, however can not truly melt, and if they are brought into a liquid state, a chemical reaction has occurred.
I'll put it simply. You see my friend, when a chemical reaction occurs, a new substance is formed. When you melt plastic, what's the result? Yes, it's still plastic. That means it's physically changed, not chemically. :3
Melting is more of a phyiscal change than a chemical one. The original substance and the product is chemically unchanged in the process. Pure ice (H2O) becomes water (H2O) on heating, which is, chemically speaking, the same substance.
no,because even if it melts it's still ice cream .
no it is a physical change not a chemical change.
Yes, because you can not change that tray back to its normal self again. It is a chemical change.
Burning of plastics is a chemical change because burning is a chemical reaction - oxidation (reaction with oxygen).
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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 melting gold a chemical change?
No, melting always is physical.As to the previous answer: reacting gold with an acid is not melting but oxidation.
Is melting of lead a chemical reaction?
No, melting of lead is a physical change, not a chemical reaction. A chemical reaction involves the breaking and forming of chemical bonds to create new substances, while melting only involves a change in state from solid to liquid with no change in chemical composition.
Is the melting point of acetone a chemical?
No, the melting point of acetone is a physical property, not a chemical. The melting point is the temperature at which a substance changes from a solid to a liquid state.
How do you find the melting point of plastic?
To find the melting point of a plastic, you typically refer to the material's technical data sheet from the manufacturer. The melting point can also be determined experimentally using techniques like differential scanning calorimetry (DSC) or thermogravimetric analysis (TGA).
Is frying an egg a chemical reation?
no
What are the materials you have at the beginning of a chemical reation?
products
What will speed up a chemical reation?
Catalyst
What is the original substances before a chemical reation occurs are the?
Reactants --> Chemical reaction --> Products
If one or more element are involved in a chemical reation they will form?
A chemical compound is formed.
What is a substance that speeds up the rate of a chemical reation?
catalyst
The sum of all chemical reation within the body?
Metabolisim
When two substances get colder in a chemical reation?
Endothermic reaction?
What kind of chemical reation a precipitate forms in a solutions?
Screw this
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.
What occurs during a chemical reation?
Compound can be formed or broken down.
What type of protein speeds up a chemical reation?
An enzyme
