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Why do some substance burn with flame while some others not?
Substances that burn with a flame contain volatile components that vaporize and mix with oxygen in the air to produce a flame. In contrast, substances that do not burn with a flame may lack volatile components or not have the necessary conditions for combustion to occur. The presence of carbon, hydrogen, and oxygen in a compound is important for producing a flame during combustion.
Why flame is observed during the burning of a substance?
Flames are the visible byproduct of a chemical reaction between the substance being burned and oxygen in the air. The heat from the initial ignition raises the temperature of the substance, causing it to break down into volatile gases that combine with oxygen to produce heat, light, and flame. The color of the flame can indicate which specific elements are present in the burning substance.
Does ammoniac burn?
Ammonia itself does not burn. It is actually used as a flame suppressant in some applications. However, ammonia can support the combustion of other materials if there is enough oxygen present.
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?
Substances that burn with a flame contain volatile components that vaporize and mix with oxygen in the air to produce a flame. In contrast, substances that do not burn with a flame may lack volatile components or not have the necessary conditions for combustion to occur. The presence of carbon, hydrogen, and oxygen in a compound is important for producing a flame during combustion.
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.
Why test flame are not acurate?
Because some elements or compounds burn the same color
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.
What are some example of oxidising?
Oxidising is and substance that provides oxygen and let the other substance burn more fiercely
Why flame is observed during the burning of a substance?
Flames are the visible byproduct of a chemical reaction between the substance being burned and oxygen in the air. The heat from the initial ignition raises the temperature of the substance, causing it to break down into volatile gases that combine with oxygen to produce heat, light, and flame. The color of the flame can indicate which specific elements are present in the burning substance.
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.
Does ammoniac burn?
Ammonia itself does not burn. It is actually used as a flame suppressant in some applications. However, ammonia can support the combustion of other materials if there is enough oxygen present.
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
Does cotton catch fire?
Yes it does. All fabrics will burn, but some more readily than others. Cotton has a high burn rate, but this can be altered by using flame-retardant chemical additives.
