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An imaginary substance that flames were supposed to be made of.
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∙ 8y ago
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Who rejected phlogiston theory?
Lavoiser rejected the phlogiston theory!
What was the composition of priestley dephlogisticated air and Rutherford's phlogisticated air?
The facts, as they stand, are these: every creature, when respiring, releases phlogiston. In fact, respiration is simply to be considered a form of combustion. Anything that can burn contains phlogiston. Substances, when burnt, release this weightless, invisible substance - an element of their being, their composition - the phlogiston. The phlogiston is always in need of somewhere to go. Such as, air is best for the phlogiston. Air can absorb it. Taking this mode of thinking to its furthest logical conclusion we can only state that the reason creatures "suffocate" is because there is nowhere for the phlogiston to go. When air was removed from around a living creature then there is nowhere for the phlogiston to go and so respiration would cease and the creature dies.
Who eventually disproved the idea of phlogiston?
A russain soviet called Malinovka Sosujragxy disproved the Phlogiston theory and discovered Oxygen instead was helped by his main colleague, Joe Lee.
Stahl thought that all materials which burned contained?
phlogiston
How many people believed in the phlogiston theory?
Most people in the scientific community accepted it in the 18th century.
Who rejected phlogiston theory?
Lavoiser rejected the phlogiston theory!
What is the mixture of calx and phlogiston?
lead calx + phlogiston = metallic lead
What did scientist think phlogiston was?
Phlogiston can be defined as "a hypothetical substance once believed to be present in all combustible materials and to be released during burning." Chemistry was so underdeveloped at the time Antoine Lavoisier gained interest in it that it could hardly be called a science. The prevailing view of combustion was the Phlogiston Theory which involved a weightless or nearly weightless substance known as phlogiston. Metals and fire were considered to be rich in phlogiston and earth was considered phlogiston poor. The following were the main theories put forward for 'phlogiston': * Weight loss when combustibles are burned because they lose phlogiston * Fire burns out in an enclosed space because it saturates the air with phlogiston * Charcoal leaves very little residue when burned because it is made mostly of phlogiston * Animals die in an airtight space because the air becomes saturated with phlogiston * Some metal calxes turn to metals when heated with charcoal because the phlogiston from the charcoal restores the phlogiston in the metal
Was the phlogiston theory of burning correct?
No, it was not. The phenomena explained by the theory are now known to be a result of oxidation, and phlogiston does not exist.
Why did the phlogiston theory change peoples ideas about burning?
because it changed their mind to belive that phlogiston is in flammable things.
What are the good points of the phlogiston theory?
a combustible material is made up of 2 parts: the calx and phlogiston when a substance burnt the phlogiston into air and calx(ash) left behind so there are no good points of this theory
Why phlogiston is an element?
Phlogiston is a hypothetical substance which at one time was thought to be the basis of combustion, but which is now known to be fictitious. It is not an element.
How did Antoine lavoisier disprove the phlogiston theory?
There was no evidence until at least 2 yrs into the work of the phlogiston theory
When iron rusts is it a phlogiston theory or a oxygen theory?
It is a process that involves oxygen. The phlogiston theory has been disprooven for a long time.
What was the composition of priestley dephlogisticated air and Rutherford's phlogisticated air?
The facts, as they stand, are these: every creature, when respiring, releases phlogiston. In fact, respiration is simply to be considered a form of combustion. Anything that can burn contains phlogiston. Substances, when burnt, release this weightless, invisible substance - an element of their being, their composition - the phlogiston. The phlogiston is always in need of somewhere to go. Such as, air is best for the phlogiston. Air can absorb it. Taking this mode of thinking to its furthest logical conclusion we can only state that the reason creatures "suffocate" is because there is nowhere for the phlogiston to go. When air was removed from around a living creature then there is nowhere for the phlogiston to go and so respiration would cease and the creature dies.
Which gas used to be called phlogiston?
Oxygen.
What is phlogiston supposed to do?
It was noticed that when things burn, they often leave behind an ash or residue that doesn't burn. It was suggested that before it burns, a flammable object contains some substance called phlogiston, which would make it burn, and when the phlogiston is used up, what is left over would not be able to burn. This theory was later shown to be wrong, and phlogiston is no longer part of the science of chemistry.
