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Why are physical processes like freezing and boiling not chemical reaction?
Wiki User
∙ 13y ago
Freezing and boiling do not change the chemistry in the process.
Wiki User
∙ 13y ago
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Freezing involves a chemical reaction?
No, freezing involves phase change, which is a physical change. There is no chemical reaction, as the basic chemistry is unchanged it is still the same material in a different physical state.
Is a substance freezing a chemical reaction?
No, freezing water is not a chemical reaction. It is a physical change which water undergoes at temperatures below 0oC. At higher temperature the ice melts back to water again.
Is ice cubes forming in the freezer a chemical reaction?
No, freezing water is a physical change, not a chemical one since no chemical reaction takes place. The water molecule (H2O) remains the same even though the physical state changes from a liquid to a solid.
Is anti- acid tablets in water a chemical reaction or physical change?
it is a chemical process due to changes in pH occur, which are held to chemical processes. :)
Is salting highways a chemical or physical change?
Salting the highway is a physical change. No chemical reaction occurs. The salt only depresses the freezing point of the ice.
Is ice cream melting in a bowl a chemical change?
No. It is purely a physical change, that of melting. No chemical reaction takes place.
What cause orange juice to freeze?
There is no Chemical Reaction involved in the freezing of apple juice. It is purely a Physical change. However, if the apple juice has fermented into hard cider (a Chemical Reaction) freezing it will cause the alcohol to separate as Apple Jack (a liquid) and the remainder of the cider will solidify ... again a Physical change.
Classify the following as a chemical and physical changes 1cooking of food 2.freezing of water 3.drying of clothes 4.mixing of iron nails and sand?
With a physical reaction, some of the substance changes, but the stubstance is still the same. A chemical reaction on the other hand, is hard to reverse. Physical: freezing of water, drying of clothes, mixing of iorn nails and sand Chemical: cooking of food
Is luster a chemical or physical or chemical reaction?
Luster is a physical property or reaction.
Is clotting of blood a physical or a chemical change?
I depends what is coagulating -- for blood it is certainly chemical. There may be physical coagulation processes, although I'm not sure.
Is color a physical or chemical reaction?
Physical reaction.
Is dissolving a physical or chemical reaction?
a physical reaction for the chemical structure is not changing.
