PhysicalPhysicalYes
A kitchen gas stove is one example. A laboratory Bunsen burner is another example.
This is indeed a physical change. There is a colour change, but if the substance is cooled down it is still the same. All that providing electricity is really doing is adding Energy to the burner.
The word equation for the chemical reaction that occurs in a burner is: fuel + oxygen → carbon dioxide + water + heat.
Striking a match initiates a chemical reacftion (burning). The proximity of the Bunsen burner has nothing to do with it.
The Bunsen burner can be used for testing the flammability of materials, heating solutions for chemical reactions, sterilizing equipment, and demonstrating flame colors for identifying certain elements.
A kitchen gas stove is one example. A laboratory Bunsen burner is another example.
the example of heating devices are bunsen burner and alcohol burner .
This is indeed a physical change. There is a colour change, but if the substance is cooled down it is still the same. All that providing electricity is really doing is adding Energy to the burner.
It is a chemical change; burning (combustion) is a chemical process.
The word equation for the chemical reaction that occurs in a burner is: fuel + oxygen → carbon dioxide + water + heat.
Striking a match initiates a chemical reacftion (burning). The proximity of the Bunsen burner has nothing to do with it.
When coal is placed into a burner, chemical energy stored in the coal is converted into thermal energy through the process of combustion. This thermal energy then heats up the surrounding materials in the burner to produce heat or steam for various applications.
A chemical change is a process that results in the formation of new substances with different chemical properties. For example, when iron rusts, it undergoes a chemical change as it reacts with oxygen to form iron oxide, a new substance with different properties than pure iron.
The Bunsen burner can be used for testing the flammability of materials, heating solutions for chemical reactions, sterilizing equipment, and demonstrating flame colors for identifying certain elements.
Certain metals, such as gold and platinum, do not decompose when heated with a Bunsen burner due to their high melting points and chemical stability. These metals do not react with oxygen in the air at the temperatures typically achieved with a Bunsen burner, allowing them to maintain their integrity without decomposing.
Combustion.
Using a Bunsen burner to heat copper is a physical change. The copper undergoes a change in its physical state from solid to liquid without changing its chemical composition.