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Producing heat is caused by a chemical process which results in physical changes.
The cause is chemical. The effect is physical. :)
:D
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∙ 13y ago
Anonymous
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∙ 13y agothermogenesis
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Side walk is warmed by the heat of the sun physical or chemical?
The sidewalk being warmed by the heat of the sun is a physical change not a chemical change.
Ignition of matches a chemical or physical change?
chemical change because there is release of heat, light and energy.
Is Burning coal physical or chemical change?
Burning coal is a chemical change. Anytime heat is released (as such in fire) it will be a chemical property change.
What matter is heat conductivity chemical or physical change?
Thermal conductivity is a physical property.
Is heating a bar magnet chemical or physical change?
Actually itz just a temporary physical change.........as u dont add on subtract anything frm the magnet exept heat.....,heat does not effect chemical properties of an iron magnet..
Is a toast a chemical or physical change?
Chemical
When a liquid is expanded by heat is that a chemical of physical change?
It is a physical change because the chemical composition of the substance does not change.
Is production of heat or light a physical or chemical change?
Its a chemical change hottie
Is melting wax a physical chemical or nuclear change?
This is a physical change, not a chemical change! It is because all the wax is still all there as for if it was a chemical change it would be all gone!Physical. Its physical state changed from solid to liquid. It's chemical make up remains the same.Melting wax is a chemical change because a new substance is forming. Trust me im intelligent and we just learned this in science.physical change :)It is a chemical change because it gives off heat even when it is burning. heat is one of the signs that tell whether it is physical or chemical change. The signs are heat , light's ,gas,discolor.Melting was would be a physical change-- no chemical reaction occurs when something melts or boils. A burning candle is a chemical change, both can occur at the same time.
Is good conductor of a heat a physical or chemical change?
Physical
Is giving off light a physical or chemical change?
I would think it to be a Physical Change. Not chemical.
Side walk is warmed by the heat of the sun physical or chemical?
The sidewalk being warmed by the heat of the sun is a physical change not a chemical change.
Is body heat a chemical or physical change?
Neither. Body heat is a result of chemical changes, but it's not itself a chemical change.
Is hydrogen burns in chlorine gas chemical or physical change?
When you combust hydrogen in air, the hydrogen will combine with oxygen to form water. Therefore, the hydrogen and oxygen are undergoing a chemical change to become bonded together producing H2O: 2H2 + O2 → 2H2O + Heat
You activate a heat pack physical or chemical?
Chemical, there is an interaction between the different chemicals in the heat pack.
Is heat conductivity a physical change or chemical change?
The heat conductivity of a substance does not involve changes to its chemistry. Heat conductivity is a physical change and characteristic to a substance.
Is a filament of a light bulb glows when an electric current flows through it is a chemical change?
It is a physical change brought about by the exitation of molecules producing heat and light. A general rule of thumb is that a physical change can be repeated on an article and chemical change cannot. Remove the current from a filament and it is still a filament.
