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It gets further apart and turns into a pink purple colour
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A shiny black solid was heated and formed a purple vapour which on cooling became a black solid again Is this a physical or chemical reaction and explain?
This is a physical change. The solid is Iodine, which sublimes on heating to form gaseous Iodine. When cooled, it sublimes again to form solid Iodine. Since this change is only the change of physical states, and since there's no change in the chemical structure of Iodine, this is a physical change.
Why does solid iodine not stick to fingerprint when heated?
that is because of iodine is solid and when it heated it mulicules moves faster after that your finger prints will not be seen and even did not stick from:bloodboilz_15@yahoo.com pake add me
Explain why the solid iodine did not stick to the finger prints but it could when it was heated?
because it was a solid particle and it turned in to a liquid form when heated.
Why is iodine heated gently?
Because it sublimes that is it directly forms into a solid
Can every iodine change from solid to gas?
there is only one iodine - iodine is the collective name for every atom of - well - iodine. use the word in the same way as you would 'air'. so 'Iodine can change from a solid to a gas'.
Why does solid iodine change when its heated?
Solid iodine is transformed by heating in a liquid at 113,7 oC.
A shiny black solid was heated and formed a purple vapour which on cooling became a black solid again Is this a physical or chemical reaction and explain?
This is a physical change. The solid is Iodine, which sublimes on heating to form gaseous Iodine. When cooled, it sublimes again to form solid Iodine. Since this change is only the change of physical states, and since there's no change in the chemical structure of Iodine, this is a physical change.
What process causes iodine vapor to collect in a flask of solid iodine?
Procrastinator, you should have started your Enrichment earlier.
Why does solid iodine not stick to fingerprint when heated?
that is because of iodine is solid and when it heated it mulicules moves faster after that your finger prints will not be seen and even did not stick from:bloodboilz_15@yahoo.com pake add me
Explain why the solid iodine did not stick to the finger prints but it could when it was heated?
because it was a solid particle and it turned in to a liquid form when heated.
What black solid forms a purple vapour when heated gently?
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Why is iodine heated gently?
Because it sublimes that is it directly forms into a solid
Why does solid iodine only stick to fingerprints when they are heated?
because when they are heated they are sticky and they only fix to fingers
How do you separate a mixture of iodine solid and sodium chloride?
Iodine is well known to sublime (change from solid to gas without becoming liquid inbetween) when heated. However sodium chloride has a melting point much higher than that of iodine. Therefore, a mixture of iodine and sodium chloride can be separated by using a sublimation apparatus, with solid iodine collected by condensation on a cold surface.
What is a solid purple-black non metal which changes to a deep purple gas when heated?
Iodine is a purple-black non metal that changes to a deep purple gas when heated.
Why does iodine emit a purple gas when heated?
Because iodine sublimates, as do the other solid halogens. That means they go from solid to gas without becoming a liquid first.
Can every iodine change from solid to gas?
there is only one iodine - iodine is the collective name for every atom of - well - iodine. use the word in the same way as you would 'air'. so 'Iodine can change from a solid to a gas'.
