No, it is a violet gas.
To separate a mixture of potassium chloride and iodine, you can use a process called sublimation. Iodine can be sublimed by heating the mixture, causing it to change from a solid directly to a gas. The iodine vapor can then be collected and condensed back into solid iodine. The remaining potassium chloride will be left behind as a solid.
An example of sublimation in science is dry ice, which is solid carbon dioxide that changes directly into carbon dioxide gas when heated. Another example is the process of freeze drying, where water is removed from a substance by sublimation under low pressure and temperature conditions.
No when you but iodine with sarch for example a potato the starch reacrs with the iodine and it turns black
For starch, which will give a deep blue-black color.
No. Al+I doesn't equal Al2O3 It will yield aluminum iodide AlI3
Sublimation is the process of direct transformation of a solid in a gas: examples are iodine, naphthalene, dry ice, camphor.
To separate a mixture of potassium chloride and iodine, you can use a process called sublimation. Iodine can be sublimed by heating the mixture, causing it to change from a solid directly to a gas. The iodine vapor can then be collected and condensed back into solid iodine. The remaining potassium chloride will be left behind as a solid.
Sublimation is when a solid goes to a gas when heated rather than going to a liquid first. At normal pressure solid carbon dioxide and iodine go directly to vapor without going to a liquid first.
If zinc chloride is heated strongly the solid will sublime.
An example of sublimation in science is dry ice, which is solid carbon dioxide that changes directly into carbon dioxide gas when heated. Another example is the process of freeze drying, where water is removed from a substance by sublimation under low pressure and temperature conditions.
Dry ice sublimating from solid to gas without melting into a liquid. Mothballs gradually evaporating in a closet without leaving behind a liquid residue. Snow disappearing into vapor without melting into water. Freeze-dried food removing moisture through sublimation to preserve flavor and texture. Iodine crystals turning directly into purple vapor without melting first.
To makea model of iodine you'll need lots of spheres the same size. Join them together in pairs to represent the iodine molecule I2. The bond you are making here is a covalent bond and won't break if your iodine becomes a gas. You need a whole collection of iodine molecules and sit them down together as close as you can get them to represent solid iodine. The forces holding them together are an example of van der Waals forces. These forces are strong enough to make iodine be a solid at room temperature.... but if you give them some energy by shaking your model, they should start to leap about as you solid iodine becomes a gas. This change is called sublimation.
2Al + 3I2 -> 2AlI3
Sublimation - a phase change from solid to gas without passing through a liquid phase - at normal atmospheric pressure can be observed with solid carbon dioxide (dry ice), iodine crystals when heated (give off violet vapours) and napthalene moth balls (give off characteristic odour).
Yes, groundnut seeds typically give a blue-black color with iodine solution due to the presence of starch in the seeds. When iodine comes in contact with starch, it forms a dark blue to black complex.
Cellulose does not give a blue color with iodine because it is a polysaccharide composed of glucose units linked together by beta-1,4-glycosidic bonds. Iodine reacts with the helical structure of starch, forming a blue-black complex due to the presence of amylose chains. Cellulose lacks the necessary structure for this reaction to occur.
No when you but iodine with sarch for example a potato the starch reacrs with the iodine and it turns black