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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 change of state directly form solid to gas or from gas to solid?
The change of state directly from solid to gas is called sublimation, and the change from gas to solid is called deposition.
What happens to the composition of matter during a physical change?
During a physical change, the composition of matter remains the same. The atoms and molecules of the substance do not change; only the arrangement or state of the matter is altered. This means that no new substances are formed during a physical change.
Sublimation is a change of state from a solid directly to a what?
Sublimation is a change of state directly from a Solid to a Gas, or a Gas to a solid. There is no intermdiate liquid stage. Carbon dioxide ( gas) sublimes to Dry Ice (Solid Carbon dioxide).
What is sublimated?
Sublimation: The change of state in which a solid is transformed directly into a gas without going through the liquid state.Sublimation = solid to gas.The corresponding change from gas directly to solid is called deposition (or sometimes solid condensation).
What kinds of changes in substances are always physical change?
The kinds of changes in substances that are always physical changes are changes in the state. This is the change from solid, to liquid and then to gas and the reverse.
What is the phase in which substances change directly from a solid to a gas?
i would assume that sublimation,solid to gas,would be the same answer when going from a gas to a solid.
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.
When substances go directly from the solid phase to the gas phase the phase change is called?
sublimation
How are the state changes of similar to the states changes in most other substances?
These changes of state are: solid to liquid, liquid to gas, gas to liquid, liquid to solid, solid to gas, gas to solid. The majority of substances have these state of matter changes.
Is dry ice smoking at a concert is a physical or chemical change?
The process of dry ice sublimating, or turning directly from a solid to a gas, is a physical change. No new substances are formed, just a change in the physical state of the dry ice from solid to gas.
How are the state changes of water similar to the state changes in most other substances?
These changes of state are: solid to liquid, liquid to gas, gas to liquid, liquid to solid, solid to gas, gas to solid. The majority of substances have these state of matter changes.
What is the change of state directly form solid to gas or from gas to solid?
The change of state directly from solid to gas is called sublimation, and the change from gas to solid is called deposition.
What is the change of solid in gas?
When solid is heated and melt then it will change into gas
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.
What substances occur in a liquid solid and a gas?
water
What is a physical change that occurs because of a decrease in temperature?
When the temperature decreases, substances can change phase from a gas to a liquid or from a liquid to a solid. This is known as condensation or freezing.
