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striker/lighter

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Wait till it cools off, then wipe the outside with a damp cloth. Unless you got chemicals on it, though, you usually don't need to--the flame is above the barrel, and the fuel burns off when you turn off the gas.

You could also do the next answer too...

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Put it in the dishwasher.

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That depends on the amount of oxygen you supply to the flame (using the 'throat holes'), the more oxygen you supply, the completer the combustion and the hotter the flame will burn. If you supply little oxygen the flame will be yellow, if you supply the maximum, it will be blue.

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By increasing the size of the opening at the base, allowing more oxygen to the flame. The hottest flame is the blue flame.

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A Bunsen burner flame can both roar and burn quietly, by allowing more oxygen to reach the flame by opening a valve it will roar, by closing the valve the flame will flicker

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Because gas will escape into the air, making more dangerous air.

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Yes

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This is the roaring flame. It is characterised by a light blue triangle in the middle and it is the only flame of the 3 which makes a noise. It is approximately 700°C.

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The basic fuel to a Bunsen burner is a hydro carbon which on heating breaks the carbon bond with other elements with differentiated calorific value and combustion with oxygen. This results in different zones with differentiated temperature

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Bunsen.

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The hottest part is where the flame is light blue or blue; which gradually turns to yellow as the flame is cooled by the colder outer air.

When the safety flame (yellow) is on, the hottest point is the tip of this flame.

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The yellow flame on a Bunsen burner is considered the safety flame so is probably not a hazard.

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Flame colors are produced from the movement of the electrons in the metal ions present in the compounds.

For example, a sodium ion in an unexcited state has the structure 1s22s22p6.

When you heat it, the electrons gain energy and can jump into any of the empty orbitals at higher levels - for example, into the 7s or 6p or 4d or whatever, depending on how much energy a particular electron happens to absorb from the flame.

Because the electrons are now at a higher and more energetically unstable level, they tend to fall back down to where they were before - but not necessarily all in one go.

An electron which had been excited from the 2p level to an orbital in the 7 level, for example, might jump back to the 2p level in one go. That would release a certain amount of energy which would be seen as light of a particular colour.

However, it might jump back in two (or more) stages. For example, first to the 5 level and then back to the 2 level.

Each of these jumps involves a specific amount of energy being released as light energy, and each corresponds to a particular colour.

As a result of all these jumps, a spectrum of coloured lines will be produced. The colour you see will be a combination of all these individual colours.

The exact sizes of the possible jumps in energy terms vary from one metal ion to another. That means that each different ion will have a different pattern of spectral lines, and so a different flame colour.

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How is the test performed?

First, you need a clean wire loop! Platinum or nickel-chromium loops are most common. They may be cleaned by dipping in hydrochloric or nitric acid, followed by rinsing with distilled or deionized water. Test the cleanliness of the loop by inserting it into a Bunsen burner flame. If a burst of color is produced, the loop was not sufficiently clean. Ideally, a separate loop is used for each sample to be tested, but a loop may be carefully cleaned between tests.

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It is based on the observation that light emitted by any element gives a unique spectrum when passed through a spectroscope. When a salt of the metal is introduced into a Bunsen burner flame, the metallic ion produces characteristic color in the flame. Some metals and the colors they produce are: barium, yellow-green; calcium, red-orange; copper salts (except halides), emerald green; copper halides or other copper salts moistened with hydrochloric acid, blue-green; lithium, crimson; potassium, violet; sodium, yellow; and strontium, scarlet. The value of this simple flame test is limited by interferences (e.g., the barium flame masks calcium, lithium, or strontium) and by ambiguities (e.g., rubidium and cesium produce the same color as potassium). A colored glass is sometimes used to filter out light from one metal; for instance, blue cobalt glass filters out the yellow of sodium.

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because its a single, stable element. its not like copper carbonate, which is a compound of more that one element; here these elements can break apart

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The blue section of the flame.

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If I read your question correctly my answer would be heat convection. The air around the Bunsen burner is being heated thus it will rise and cause a vertical "wind".

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it is the fire

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Luminous flames are formed when the energy released is at a certain part of the electromagnetic spectrum. A red flame is given off when the energy is at the same energy and wavelength of red light. A yellow sooty flame is much lower energy and caused by a lack of oxygen.

Burning fuels produce heat. Heated atoms and/or molecules emit a photon as they return to a lower energy state.

Look at various flames, You may see concentric areas that are like layers, each one a different color. The fuel breaks up or is oxidized differently in each layer and each has a distinct temperature and chemical makeup.

Not all emitted light from a flame is visible, a lot is emitted in the infrared spectrum which we cannot see but will feel as it heats our skin. Some flames are totally invisible, like from hydrogen.

Some emitted light is only at very specific (narrow) frequencies, which we will see as certain colors, light and dark blue from methane premixed with air in a Bunsen burner or stove-top gas range.

Hot carbon atoms emit over a very wide range of frequencies at random, so we see yellow light from candles.

If hot enough, carbon emits a bluish white light, like from acetylene/oxygen.

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it destroys the world, but if veryone is dead, WHO WAS PHONE?

Well it boils away and because the vapour is is inflammable you will get a fire. Inflammable volatile substances should never be heated up using a naked flame, its dangerous.

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Non-luminous flame should be used for heating in the laboratory because the flame is steady and produce little or no soot.Non-luminous flame is very hot thus, it is recommendable to use for laboratory purposes.Luminous flame is unsteady while non-luminous flame is steady.Another reason of using non-luminous flame because the flame of non-luminous is blue, and not visible unlike the luminous flame which is yellow in colour and visible.

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Turning off the Bunsen burner at the gas tap puts out the fire because the gas is a switch that lets the amount of gas that you want to burn. And if you turn it off then it would let no gas through and there for would not let the Bunsen burner light up.

Hope this helps

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The purpose of the sleeve on a Bunsen Burner is to switch between the blue/transparent flame (the hot one) and the orange one.

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