0
Black/dark grey
Wiki User
∙ 11y ago
Add your answer:
Earn +20 pts
What are iodines natural properties?
Iodine is water insoluble and turns black when exposed to light, Iodine is used in the diet and if we dont get enough iodine we may get impaired physical development in children. Iodine is a halogen so is toxi and can be used to kill bacteria. Iodine can also tell you whether a substance has starch or not in it.
Why is it physical change when purple iodine appears when solid iodine is warmed?
Because the Iodine is undergoing a phase change, which is a physical change. The Iodine is going from a solid to a liquid (I presume), and it's changing color. Those are both examples of physical changes. Phase changes are easily reversible without the use of energy, you could just freeze the iodine, and have the solid again. As for the color change, that's true for a lot of elements, like Mercury. This is not an example of a chemical change because not only is it easily reversible, but because no new substance is formed. You still only have Iodine, but in a different phase, and in a different color.
What state is iodine?
Solid in room temperature.
What is iodines density and color?
The density of iodine at room temperature is 4,933 g/cm3. As a gas iodine is approx. violet or purple, as solid very brown.
What state is iodine at room temperature?
Iodine is a solid when at 25 degrees centigrade (room temperature)
Colour of iodine solid?
The color of solid iodine is a dark purple.
What color is iodine afer adding to filter paper?
Solid iodine is gray.
What is the color of iodine?
It is a violet-dark grey As a gas iodine is violet, as solid is very brown. The color in solutions depends on the solvent - the ethanolic solution is brown. The melted iodine is also brown.
What are iodines natural properties?
Iodine is water insoluble and turns black when exposed to light, Iodine is used in the diet and if we dont get enough iodine we may get impaired physical development in children. Iodine is a halogen so is toxi and can be used to kill bacteria. Iodine can also tell you whether a substance has starch or not in it.
What color is iodine?
Iodine is purple.As a gas iodine is approx. violet or purple, as solid is very brown.Brown if no starch on plant. Dark blue if there is starch on plant.
Is iodine solid a conductor?
No solid iodine does not conduct electricity.
Is Iodine a soild or gas?
Elemental iodine is a solid. But it is a volatile solid in that chemists will use solid iodine in a chamber to "iodine stain" substances in thin layer chromatography. Thus iodine is like having a volatile solid.
What state is iodine?
Solid in room temperature.
Why is it physical change when purple iodine appears when solid iodine is warmed?
Because the Iodine is undergoing a phase change, which is a physical change. The Iodine is going from a solid to a liquid (I presume), and it's changing color. Those are both examples of physical changes. Phase changes are easily reversible without the use of energy, you could just freeze the iodine, and have the solid again. As for the color change, that's true for a lot of elements, like Mercury. This is not an example of a chemical change because not only is it easily reversible, but because no new substance is formed. You still only have Iodine, but in a different phase, and in a different color.
How does iodine crystal changes into vapours?
Iodine sublimes- i.e it changes from solid to gas without going though a liquid phase.
At STP which element is a solid hydrogen or iodine?
Iodine is a solid at STP.
Is color a physical change?
Only if the color change is not permanent. Take Iodine for example (that's pronounced Eye-oh-deen), it is a solid metal that is grayish in color in its solid state, however in its gas state it's a purple or violet color. Once it reverts to its solid state, it turns gray again. This is a PHYSICAL property of Iodine. If the color changed permanently to something else, it would be a chemical change.
