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Because its called copper oxide from when the copper coin mixes with oxygen in the air. thats why alot of old coins are black.
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What is diesel particulate pollution?
A running Diesel engine releases soot in its exhaust. Another word for soot is particulate pollution - as soot consists of small particles.
Why does magnesium burn in carbon dioxide?
Magnesium burns in carbon dioxide because, when heated, the oxygen in the carbon dioxide is able to bond with magnesium and produce an oxide. Carbon, or soot is formed as a resulting by-product. 2Mg + CO2 ----> 2MgO + C
Chemical name of so2?
The composition varies depending upon the hydrocarbon burned. However, by definition, soot is the black solid or tarry substance produced during hydrocarbon combustion. Analysis has revealed the presence of some smaller molecular weight liquid hydrocarbons such as C8 compounds to C20 but for the most part more stable polyaromatic hydrocarbons are formed. These polycyclics have been implicated in cancer. They are known carcinogens.
What solid product released during the incomplete combustion of hydrcarbon fuels?
Carbon!!! as black soot/'smoke'. For incomoplete combustion CnH2n+2 + O2 = H2O(l) + CO2(g) + CO(g) + C (s) This is not a balanced equation , but given to demoinstrate incomplete combustions products.
Is SO2 an element or a compaund?
'Soot' is the general name for a variety of carbon compounds.
What is the black particle of an naphthalene when it gets heated?
soot
Black powdery stuff in a chimney?
I think you might be talking about soot. Soot is the leftover stuff from when wood or other materials are burnt.
What is the black stuff that people are covered in after an explosion called?
Soot.
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.
Why oil become black after a while?
Because what the engine is basically doing is burning stuff, and when you burn something you usually get soot and some ashes. Some of that soot gets trapped int he oil, and is what makes it black.
Why does porcelain go black when heated over Bunsen burners?
If the flame of the burner hasn't sufficient oxygen black carbon soot is deposited on the porcelain laboratory ware.
What is black stuff in chimney?
It is soot, which is impure carbon particles resulting from the incomplete combustion of coal, wood, oil, etc.
What is a 4 letter word that means a black substance that comes from burning wood?
soot
What is the black substance that comes from burning wood?
Soot is often produced when burning wood.
What is stuff made out of coal?
Fire. Heat. Dust. Soot.
What is the chemical name of the black deposit on the bottom of the equpment heated with a yellow flame?
i dont fully understand the question, do you mean the black almost burnt looking substance? which would be soot made from carbon which is the same thing in chimneys
What is a noun for soot?
Soot is a noun. It is the black residue left behind by burning some substances.
