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I t happens as the heat makes the metal glow as it expands.

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12y ago
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3mo ago

The blue flame of a Bunsen burner is hotter than the yellow flame. When a metal object is held in the blue flame for a long time, it absorbs heat and emits light, resulting in the metal glowing red due to incandescence. This happens as the metal reaches a temperature at which it begins to emit visible light.

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Q: Why does the blue flame on a Bunsen burner make metal things red when they are held in the flame for a long time?
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Related questions

How do you use a Bunsen burner to kindle the copper metal?

You open th Bunsen burner. Then you use a metal grabber to grab the copper metal and put it on top of the Bunsen burner's flame. Soon the cooper metal will be kindled.


Name a metal carbonate that dose not decompose in a Bunsen burner flame?

sodium carbonate


Name a metal carbonate that does not decompose when heated with a Bunsen burner flame?

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What science tool is used to heat things up in a lab?

A Bunsen Burner An Electric Mantle A Steam mantle.


Is the Bunsen burner made of pyrex?

No, a Bunsen burner is typically made of metal, specifically brass or stainless steel. Pyrex is a type of borosilicate glass that is commonly used for laboratory glassware such as beakers and test tubes.


What holds a small solid in a Bunsen burner flame?

A metal wire or ceramic triangle called a "crucible" is typically used to hold a small solid in a Bunsen burner flame during heating. This allows for better heat transfer and prevents the solid from rolling out of the flame.


What is an gauze mat used for?

A gauze mat is used below bunsen burners as it protects the tripod or surface which the bunsen burner might be on. It is most likely to be made of thick metal threads threaded into a mat or square. It is best if it is not touched during an experiment including a bunsen burner as it probably will result in mild to severe burns.


How do the Bunsen burner looks like?

A Bunsen burner typically consists of a metal base with a vertical metal tube that has openings to control the intake of air and gas. A gas hose attaches to the burner to supply gas, and a rubber hose attaches to the air intake to control the flame. The flame is emitted from a small nozzle at the top of the burner.


What is the spud on a Bunsen burner?

The spud on a Bunsen burner is a small metal fitting that controls the flow of gas. It is typically located at the base of the burner where the gas enters, and it can be adjusted to regulate the flame size and intensity. The spud helps to ensure a controlled and consistent flame for heating purposes.


Can you light a Bunsen burner with a burning piece of paper?

No, it is not safe to light a Bunsen burner with a burning piece of paper because it can lead to an uncontrolled flame and potential accidents. It is recommended to use a striker or a lighter specifically designed for lighting Bunsen burners to ensure proper control of the flame.


What is a striker in laboratory equipment?

In laboratory equipment, a striker is a device used to ignite a Bunsen burner by producing a spark. It is typically made of a material such as flint or metal, and is designed to safely and efficiently generate a spark to ignite the gas flame on the Bunsen burner.


Bunsen burner parts?

A Bunsen burner typically consists of a base, gas inlet tube, air control collar, barrel, and burner tip. The base is used to stabilize the burner, the gas inlet tube connects to the gas source, the air control collar adjusts the air flow, the barrel houses the flame, and the burner tip is where the gas mixes with air and ignites.