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Melting is a physical process.
Elian Konopelski
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Is Pouring molten gold in a mold a physical or chemical change?
Physical
When molten rock cools and hardens is a physical change or chemical change?
I think it is physical but I do know it is an igneous rock
Is Using oxygen to separate molten copper sulfide into copper and sulfur dioxide a physical change?
no it is a chemical change
Is using oxygen to separate molten copper sulfide into copper sulfur dioxide a physical change?
no it is a chemical change
Is pouring molten gold into a mold a physical change?
Yes. Gold would have to bond with something for it to be a chemical change.
Is iron melting a physical change?
Melting iron is a strictly physical change (change of state). The molten and solid iron would be identical by any chemical test or reaction.
Is the melting point of silver a physical or a chemical property?
The change in the state of matter between solid, liquid and gas are not chemical changes. The melting point of a substance, silver in this case, is a physical characteristic.
Is a glassblower creating sculpture out of glass a physical change or a chemical change?
A physical change; you're turning the solid glass into a semi-liquid molten state, forming it into a desired shape, and then allowing it to cool and harden.
Is a glass blower creating sculptures a physical or chemical change?
yes it is a chemical change because it turned into something new a scultureWRITTEN BY ISABELLA GARCIAIN ROGERS MIDDLE SCHOOL6TH GRADE
Is turning a penny gold a chemical or physical reaction?
Anything else then dropping it in molten gold is chemical
Is molten lava hardening into a rock a physical change?
It's a physical change - more intermolecular bonds (bonds between different molecules) are formed due to the cooling of the matter, and the state of matter changes from liquid to solid. The chemical makeup of the lava does not change.
Is sodium and potassium reacting violently with water a chemical or physical change?
Their reaction with the water is a purely chemical change, however the chemical reaction is so intense and violent that it is usually followed by many dangerous physical changes (e.g. boiling of the water, flinging molten pieces of the unreacted metal at you, spattering drops of lye solution at you).
