0
Some solids are Carbon dioxide, Snow, Iodine and Naphthalene
Wiki User
∙ 12y ago
Add your answer:
Earn +20 pts
Can iodine ever be in the liquid state or it just sublimes on heating?
Iodine can exist as a solid, liquid, or gas. Its normally solid at STP, but with slow heating you can get it into its liquid form. It sublimes, so the heat must be well controlled. After he pours liquid bromine, this person then shows some liquid iodine.
What happens when a solid sublimes?
When ice sublimes, the molecules at the edge of the ice escape into the gas phase as water vapor. The solid phase thus turns directly into the gas phase without an intermediary liquid phase. Ice sublimes quite slowly under normal conditions, but dry ice (solid carbon dioxide) sublimes readily at everyday temperatures and pressures.
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 is iodine heated gently?
Because it sublimes that is it directly forms into a solid
How would you separate iodine crystals from mixture of iodine and sand?
we can separate them by sublimation as iodine sublimes on heating.
Can iodine ever be in the liquid state or it just sublimes on heating?
Iodine can exist as a solid, liquid, or gas. Its normally solid at STP, but with slow heating you can get it into its liquid form. It sublimes, so the heat must be well controlled. After he pours liquid bromine, this person then shows some liquid iodine.
What do particles of a solid do when the solid sublimes?
Sublimation is the conversion from solid directly to gas, so the particles of a solid that sublimes would change into a gas.
What color is ammonium chloride?
Ammonium chloride is colorless.Ammonium chloride, as a solid, is white in color. It is highly soluble in water and solutions of ammonium chloride is colourless. The solid form also sublimes on heating.
What happens when a solid sublimes?
When ice sublimes, the molecules at the edge of the ice escape into the gas phase as water vapor. The solid phase thus turns directly into the gas phase without an intermediary liquid phase. Ice sublimes quite slowly under normal conditions, but dry ice (solid carbon dioxide) sublimes readily at everyday temperatures and pressures.
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 property of ammonium chloride enables it to be separated from salt and sand?
On heating it sublimes and the vapor easily crystallizes to a solid again. Salt has a much higher melting point and sand extreemly high.
What is it when a solid goes straight to a gas?
Deposition when passing from gas to solid, sublimes when in the opposite direction.
Why does putting dry ice in water increase the amount of gas produced?
Dry ice is solid carbon dioxide, which sublimes (goes directly from a solid to a gas). So it releases the gas as it sublimes.
How do you separate a mixture of potassium chloride and iodine give details?
Should be by sublimation. We make use of the fact that iodine sublimes(changes to solid to gas immediately) upon heating why potassium chloride does not :D
Why is iodine heated gently?
Because it sublimes that is it directly forms into a solid
What do the particles of a solid do when the solid sublime?
Sublimation is the conversion from solid directly to gas, so the particles of a solid that sublimes would change into a gas.
What is the process called when solid turns directly into grass?
Solid to gas is sublimationDiamond sublimes. Liquid diamond is not achievable.
