No, the melting of plastic is not a chemical reaction. This is because there is just a temperature change, which happens to change solid to liquid. The solid remains the same element with the same properties, and no "new substance" is formed.
chemical change.because once the tray melts it's no longer there anymore
No, melting always is physical.As to the previous answer: reacting gold with an acid is not melting but oxidation.
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.
The melting point of acetone is approximately -94.9 °C or -139 °F
Shortening melting is a physical change, not a chemical change or chemical property. When shortening melts, it undergoes a change in state from solid to liquid without any change in its chemical composition.
no
products
Catalyst
A chemical compound is formed.
Reactants --> Chemical reaction --> Products
catalyst
Endothermic reaction?
Metabolisim
Screw this
chemical change.because once the tray melts it's no longer there anymore
Compound can be formed or broken down.
An enzyme