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What are examples of chemical reaction?
Reactions that are not chemical reactions are physical reactions. These reactions involve a change in only the physical state of an element, not its chemical properties. Thus, physical changes include freezing, condensation, sublimation, hammering a metal into a sheet, cutting sodium metal, etc.
Why do you think the sublimation of dry ice and expansion of gases are not chemical reactions?
The sublimation of dry ice and expansion of gases are not chemical reactions because the chemical composition of the substances involved remains the same before and after the process. In sublimation, dry ice changes from a solid to a gas without a change in its chemical structure. Expansion of gases occurs when gas particles spread out to fill the available space, but no new substances are formed. Both processes involve physical changes rather than chemical reactions.
Is baking bread is a chemical reaction?
yes it involves some chemical reactions by yeast
Is subliming ice a chemical change?
No, subliming ice is a physical change where ice changes from a solid directly into a gas without melting into a liquid first. It is a phase transition process and does not involve any chemical reactions or changes in the chemical composition of the ice.
Is deposition of iodine a Physical or chemical change?
Deposition of iodine is a physical change. It involves the transition of iodine from a gas directly to a solid without passing through the liquid phase, which is a process called sublimation in reverse. Since the chemical identity of iodine remains unchanged during this process, it does not involve any chemical reactions or the formation of new substances.
Is a bagel chemical reaction?
Bagels are a food industry product, not a reaction; but the production of bagels involves chemical reactions.
Is sublimation of sodium chloride chemical or physical change?
Sublimation is a physical change.
Is sublimation a chemical or physical?
Physical
Is iodine sublimating a chemical change?
Yes, the sublimation of iodine is a physical change, not a chemical change. Sublimation is the process by which a substance transitions from a solid directly to a gas without passing through the liquid phase. The chemical composition of iodine remains the same during sublimation.
Why is sublimation of ammonium chloride is both physical and chemical change?
Sublimation of ammonium chloride is considered a physical change because it involves a phase transition from a solid to a gas without any change in the chemical composition of the substance. However, it can also be considered a chemical change because the bonds holding the ammonium chloride together in the solid phase must be broken in order for sublimation to occur, resulting in the separation of ammonium ions and chloride ions.
Is metallurgy a chemical process?
Metallurgy involves extracting metals from ores through physical and chemical processes like crushing, heating, and chemical reactions. It also involves techniques to purify metals and create alloys through controlled chemical processes. So, yes, metallurgy involves chemical processes.
Is burning woo sublimation?
Burning is a chemical reaction between a substance and oxygen. Sublimation is a type of physical state change produced by changes in temperature and/or pressure; it is not a chemical reaction. Sublimation is not the same as combustion.
