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Physical changes can be undone, and the substance undergoing the change is still chemically the same thing. It is just in a different form.
What else can I help you with?
IF solid dry ice slowly disappears completely is this a physical or chemical change?
The "disappearance" of dry ice is a physical change. What you refer to as disappearance is actually sublimation where the solid CO2 turns to a gas without going through the liquid phase. Dry is is solid CO2 and when it disappears it becomes gaseous CO2, so it is a physical change.
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.
Is dry ice a chemical change or a physical change?
I just had this question for a chemistry and it is a physical change
Is dry ice subliming a physical change?
It is a physical change because even though it is a gas, it can be made back into what it used to be. Just like ice melts into water and water heats and evaporates to gas. Water can easily be frozen back to ice. Gas can turn back to water. Dry ice sublimating is a physical change of carbon dioxide between a solid state and a gaseous state without going through a liquid state. If it were s chemical change, than it would no longer be carbon dioxide after changing state.
Is a piece of dry ice changing into a gas a physical change?
Yes
Is dry ice subliming a physical change or a chemical change?
A physical change. It's chemically still CO2, whether solid or a gas.
Is dry ice turning into Carbon dioxide physical or chemical?
It is a physical change of state. CO2 solid (dry ice) is still CO2 as a gas.What does change is the physical heat content of the substance. By absorbing heat the physical state is changed from a solid at -109.3 degrees F to a gas at -109.3 degrees F. All the heat absorbed for the change of state is used by the molecules to expand in size (external energy), rather than to change in temperature. There is also a small amount of energy loss due to this change (entropy). Another calculation made is internal energy which is the internal molecular motive energy of the substance.
Is mealting dry ice a chemical change or physical change?
Melting dry ice is a physical change because it is a change in state from solid to gas without altering the chemical composition of the substance.
Is dry ice drinks chemistry?
Yes. Putting dry ice in a drink is chemistry. You are witnessing a physical change. Now, if you are asking whether a chemical process is taking place, the answer is no. All that is happening is that the dry ice is changing physical forms: from solid to gas, a phase transition known as sublimation.
When solid dry ice gets warmed and changes into a gas a physical or chemical property?
The process is a physical process and the actual change is a physical change.
Is dry ice changing into theatrical smoke physical or chemical change?
Dry ice doesn't "turn into smoke". Dry ice causes moisture in the air to condense, forming fog. This is a purely physical, not chemical, change.
Does dry ice go through a physical change or chemical change?
It is a physical change (phase change). Dry Ice is frozen carbon dioxide gas. At atmospheric pressure, liquid CO2 is unstable. So the frozen solid "sublimes" turning directly from a solid to a gas (absorbing heat from around it).
