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Is it physical or chemical when dry ice evaporates without melting as time passes?
It is a physical change when dry ice (solid carbon dioxide) evaporates directly into gas without melting into a liquid. This process is called sublimation, where the solid directly changes into a gas without going through the liquid phase.
Is evaporation of dry ice a decomposition reaction?
No, the evaporation of dry ice is a physical change, not a decomposition reaction. Dry ice is solid carbon dioxide, and when it evaporates, it changes directly from a solid to a gas without undergoing a chemical reaction.
Dry ice turning into carbon dioxide physical or chemical?
i think it is chemical but it may be physical.
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 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 it physical or chemical when dry ice evaporates without melting as time passes?
It is a physical change when dry ice (solid carbon dioxide) evaporates directly into gas without melting into a liquid. This process is called sublimation, where the solid directly changes into a gas without going through the liquid phase.
Is evaporation of dry ice a decomposition reaction?
No, the evaporation of dry ice is a physical change, not a decomposition reaction. Dry ice is solid carbon dioxide, and when it evaporates, it changes directly from a solid to a gas without undergoing a chemical reaction.
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 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.
Why is dry ice evaporation a physical chainge?
Dry ice is a solid form of cooled carbon dioxide. When it reaches room temperature it changes to gaseous carbon dioxide. Since, there is no change in the chemical composition of dry ice, it is called a physical change.
Dry ice turning into carbon dioxide physical or chemical?
i think it is chemical but it may be physical.
You take a shower and your hair begins to dry is that a chemical or physical change and why?
The drying of your hair after a shower is a physical change. This is because no new substances are being formed during the drying process; only the physical state of the water in your hair is changing from liquid to gas as it evaporates.
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.
If you leave an orange out for days and there is nothing but the juice is dry will that be a chemical physical change?
Chemical change.
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.
Does a chemical change occur when dry ice is dissolved in water?
When dry ice (solid carbon dioxide) is dissolved in water, it undergoes a physical change rather than a chemical change. The dry ice sublimes, meaning it changes directly from a solid to a gas without passing through the liquid phase. This process is reversible, as the carbon dioxide gas can re-solidify back into dry ice when the temperature decreases.
Why is dry ice disappearing a chemical change?
It isn't. Answer --> It is an example of phase change and thus a physical change. Not a chemical change
