answersLogoWhite

0


Want this question answered?

Be notified when an answer is posted

Add your answer:

Earn +20 pts
Q: What is the composition of the deposit on the porcelain dish when it was held over a luminous flame?
Write your answer...
Submit
Still have questions?
magnify glass
imp
Related questions

Why luminous fame produce deposit on the bottom of the beaker?

Luminous flame produce deposit on the bottom of the beaker because when the beaker is near the flame, it limits the amount of oxygen for the methane, thus, the deposit (which is Carbon), is produced.


What happens to a evaporatind dish when placed over a luminous flame?

it doesnt change its color


What is the difference between luminous and non luminous?

-A non-luminous flame is when the air hole of the Bunsen burner is closed but a luminous flame is produced when the air hole is opened.-A luminous flame has an outer of orange colour and an inner of blue. A non-luminous flame has an outer of blue and an inner of orange.-A luminous flame produces soot while a non-luminous does not produce soot.-A luminous flame is weak and unsteady. A non-luminous flame is strong and steady.-A non-luminous flame is very hot while a luminous flame is not too hot.


Should a luminous or non luminous Bunsen flame be used for heating in the laboratory and why?

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.


Is non luminous flame steady or unsteady?

Non-luminous flame should be used for heating in the because the flame is steady and produce little or no soot. Non-luminous flame is very hot thus, it is recommen- dable to use for laboratory purposes. Luminous flame is unsteady while non-lumi- nous 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.


How does luminous flame exist?

because of the yellow flame, yellow is a bright coulor........... Scientific term......... The collar is closed to get luminous flame and collar open to get non- luminous flame....


Why is black soot formed when the flame is luminous?

The black deposit produced represents soot particles, heated to incandescence. It comes about when the combustion of air is insufficient.


Is sooty flame a luminous or non luminous?

luminous


Is a candle flame luminous?

No it is not luminous!


What two flames flickers non-luminous or luminous?

A luminous flame flickers while a non-luminous flame remains steady.


What is the degree of hotness of luminous flame?

The degree of a luminous flame is 100 degree .


What is luminous flame and Explain why it takes a longer time to heat equal amount of water using a luminous flame?

yellow color in a luminous flame produces soot or carbon. carbon dioxide is present in the luminous flame but when its combined with oxygen the flame is nonluminous which is in a blue color. it takes a longer time because luminous flame is cooler than the nonluminous. I only know what luminous flame is. The inner part of luminous flame is blue while the outer part of the luminous flame is yellow. It is unsteady. Yeah. Carbon Dioxide is only present in the luminous flame. When oxygen is combined with the flame, the flame will become non- luminous which is inner and outer part are blue. Hmm. Actually luminous flame's hottest part is at the bottom while non- luminous flame hottest part is at the middle and the top. That's all i know. If i know more, i will update for you. Thank you! By helpingppl