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a substance burns with a flame due to the presence of volatile substances in it
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∙ 13y ago
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Why do some substance burn with flame while some others not?
Well, actually I think it depends on the chemical properties of the chemical and how much oxygen there is around the 'substance'... :)
Why flame is observed during the burning of a substance?
During combustion, energy is released. Some of this energy takes the form of light, making the flame visible.
What do flame test show about the structure of atoms?
The flame test is only for qualitative identification of some chemical elements.
Why use flame tests in forensic science?
Flame tests allow you to get some idea of what substances make up a given sample. It is particularly useful for the identification of polymers, because many of them give off unique burn patterns.
Is pencil lead flammable?
: Pencil "Lead" Is made out of Graphite and graphite is NOT flammable. However some brands of "lead" have a coating that is. If you expose a pice of "lead" to an open flame the coating will quickly burn away, the flame will extinguish, and the "lead" will remain. (still useable)
Why do some substance burn with flame while some others not?
Well, actually I think it depends on the chemical properties of the chemical and how much oxygen there is around the 'substance'... :)
Why do different substances catch fire at different temperature?
It basically depends upon the saturation of hydrocarbons.Alkanes generally burn in air with a blue flame because %age of carbon is low which gets oxidised completely by the oxygen as copare to unsaturated hydrocarbons,but production of flame depends upon availability of oxygen too, in secant concentration of oxygen sooty flame or no any flame will be observed and substance at that time will produce energy slowly with sooty flame or just smoke only.
Why do some substances with high pH burn your skin while substances of similar pH do not burn your skin?
The pH is not the only risk factor of a substance.
What does the flame test give off to identify a substance?
The color of the flame test is specific for some metals. See the link below.
Why test flame are not acurate?
Because some elements or compounds burn the same color
Can solid compounds burn in the presence oxygen?
Sort of. Think of wood - it will burn BUT you must heat it to the point that it vaporizes (because only vapors make flames). Note that some of the same wood burns without actual flame.
Why flame is observed during the burning of a substance?
During combustion, energy is released. Some of this energy takes the form of light, making the flame visible.
What are some example of oxidising?
Oxidising is and substance that provides oxygen and let the other substance burn more fiercely
Flame luminosity with the combustion process?
No such thing, a luminous flame is an incomplete burn.
How do you test PVC is PVC and not pet?
Do the flame test; if you burn PVC, the flame will turn green at some point. The weight of them are different ,PVC is little heavy than PET .
What is flame orb for in Pokemon Diamond?
The Flame Orb burns the user, and Burn lowers the attack of a Pokemon by one stage. This can be to your advantage, as you can some how give the Flame Orb you are holding to opponent, such as a Lopunny with Klutz and uses the move Switcheroo.
What color flame will rubidium give off?
the color of the flame produced when you burn rubidium is tha same color OS what potassium produce-the colour violet
