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Is iodine becomes a purple gas a chemical change?
Yes, iodine becoming a purple gas is a physical change, not a chemical change. A chemical change involves the formation of new substances with different chemical properties, whereas in this case, the iodine is just changing its physical state from solid to gas without forming any new substances.
What is the purple gas which fills the test tube when heating an iodine?
The purple gas formed when heating solid iodine in a test tube is iodine vapor. Iodine sublimes directly from a solid to a gas when heated, turning into a purple gas that condenses back into solid iodine crystals when cooled.
The chemical equation of iodine solid to gas?
The chemical equation for the sublimation of iodine solid to iodine gas is: I2(s) -> I2(g). This represents the process in which solid iodine directly transforms into iodine gas without going through a liquid phase.
Why is sublimation of iodine is a physical process?
Sublimation is a physical process because it involves the direct transition of a substance from solid to gas phase without passing through the liquid phase. In the case of iodine, when it is heated, it directly converts from solid to gas without changing its chemical composition, making it a physical change.
What substances change from gas to solid?
Substances that change from gas to solid undergo a process called deposition. Examples include water vapor turning into snowflakes, carbon dioxide subliming into dry ice, and iodine subliming into solid crystals.
Is iodine becomes a purple gas a chemical change?
Yes, iodine becoming a purple gas is a physical change, not a chemical change. A chemical change involves the formation of new substances with different chemical properties, whereas in this case, the iodine is just changing its physical state from solid to gas without forming any new substances.
What element will change phase directly from solid to a gas at room temperature?
Iodine. Also, the process is called sublimation (phase change from solid --> gas)
What chemical compound forms when you heat Iodine?
Heating iodine sublimation occur: this is a direct change from solid to gas.
What is the purple gas which fills the test tube when heating an iodine?
The purple gas formed when heating solid iodine in a test tube is iodine vapor. Iodine sublimes directly from a solid to a gas when heated, turning into a purple gas that condenses back into solid iodine crystals when cooled.
The chemical equation of iodine solid to gas?
The chemical equation for the sublimation of iodine solid to iodine gas is: I2(s) -> I2(g). This represents the process in which solid iodine directly transforms into iodine gas without going through a liquid phase.
What is the common property of iodine and naphthalene?
they both sublime, in which the solid particles will change directly into gas.
What change from solid to gas?
Deposition examples: gaseous iodine, and the water in snow clouds.
What are some substances that can change directly from gas to solid states?
Iodine does not go through a liquid when changing phase. Carbon dioxide does not go through liquid phase. Both iodine and carbon dioxide sublime from a solid to a gas and condense from the gas to a solid.
Iodine sublimes to iodine vapor is physical or chemical change?
Sublimation of iodine to iodine vapor is a physical change. It is a phase transition in which a substance goes directly from a solid to a gas without changing its chemical composition.
Purple iodine vapor appears when solid iodine is warmed is that chemical or physical change?
It is a physical change because the iodine is changing state from solid to gas without forming any new substances.
Why is sublimation of iodine is a physical process?
Sublimation is a physical process because it involves the direct transition of a substance from solid to gas phase without passing through the liquid phase. In the case of iodine, when it is heated, it directly converts from solid to gas without changing its chemical composition, making it a physical change.
What state is iodine at room temperature?
Iodine is a solid when at 25 degrees centigrade (room temperature)
