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When you warm the test tube crystal of iodine what is the result?
When you warm the test tube crystal of iodine, it sublimes from a solid to a purple gas, leaving a yellow residue in the test tube.
Which halogen goes from the solid phase directly to a gas?
Iodine is the halogen that sublimes directly from a solid to a gas at standard pressure and temperature.
What is a dark grey solid that sublimes to form a violet vapor?
The substance you are describing is likely iodine. Iodine is a dark grey solid that can sublime directly from a solid to a vapor without going through the liquid state. When iodine sublimes, it forms a violet vapor.
What is sublimation and give an example of a substance that sublimes?
If zinc chloride is heated strongly the solid will sublime.
What is iodine vapour?
Iodine vapor is the gaseous form of iodine, which is a dark purple element with a distinctive odor. When solid iodine is heated, it sublimes directly into a purple vapor without melting, and this vapor condenses back into solid iodine upon cooling.
Why iodine exist in solid state but it is a gas?
Iodine exists in solid state under normal atmospheric conditions due to its low boiling point of 184 degrees Celsius. When heated, iodine sublimes directly from solid to gas without melting, which is why it can exist as a gas.
An element that can be a black solid or a colorless crystal?
Iodine is an element that can exist as a black solid or colorless crystal.
When you warm the test tube crystal of iodine what is the result?
When you warm the test tube crystal of iodine, it sublimes from a solid to a purple gas, leaving a yellow residue in the test tube.
How can crystal of iodine and charcoal could be separated?
Iodine crystals and charcoal can be separated by sublimation. When iodine is heated, it sublimes directly from solid to gas without passing through the liquid phase, leaving behind the charcoal. The iodine vapor can then be collected and cooled to form solid iodine crystals again.
What solid sublimes on heating?
Iodine is a solid that sublimes on heating. It changes directly from a solid to a gas without passing through a liquid state.
Iodine liquid or solid?
Iodine is a solid at room temperature and pressure. It sublimes directly from a solid to a purple vapor without melting.
How can you separate iodine mixed with zinc oxide?
One way to separate iodine from zinc oxide is through sublimation. Since iodine sublimes at a lower temperature than zinc oxide, you can heat the mixture to a temperature where iodine sublimes, and then collect the iodine vapors while leaving behind the zinc oxide.
Can iodine ever be in the liquid state or it just sublimes on heating?
Iodine can exist in the liquid state under specific conditions of temperature and pressure. When heated, solid iodine can sublime directly into a vapor without passing through the liquid phase, a process known as sublimation.
Which halogen sublimes to violet vapours?
iodine is the only halogen in solid form. so it is the halogen which gives violet vapours on sublimation...
What is appearance crystal iodine?
Crystalline iodine appears as shiny, bluish-black crystals with a metallic luster. It has a distinct odor and sublimes (changes from a solid to a gas) easily at room temperature.
What is the equation for iodine being heated?
When solid iodine is heated, it sublimes directly to form a purple vapor. The chemical equation for this process is: 2I2(s) -> 2I2(g)
What is an element that is a shiny black solid and gives off a purple vapor when heated?
Iodine ------------------------------------------- The element you describe sounds like iodine, a good test to make sure that it is iodine is to see if the substance sublimes. This means a solid sample of iodine will turn straight from a solid into a gas with no liquid stage.
