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Is sublimation of sodium chloride chemical or physical change?
Sublimation is a physical change.
Is sodium chloride a chemical or physical property?
Sodium chloride is a chemical compound (NaCl), not a property.
Why are sublimation and deposition are classified as physical changes?
Because sublimation and deposition doesn't change the chemical nature of the molecule.
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 dissolving sodium chloride a chemical or physical change?
Dissolving sodium chloride in water is a physical change because the chemical composition of sodium chloride remains the same. The sodium and chloride ions are simply dispersed throughout the water, but they can still be recovered by evaporating the water.
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 heating of ammonium chloride in a test tube a physical or chemical change?
This is a chemical change (thermal decomposition).
Is sublimation of sodium chloride chemical or physical change?
Sublimation is a physical change.
Does ammonium chloride and water is a chemical or a physical change?
Dissolution is a chemical process.
Is dissolving ammonium chloride in water a chemical change?
No. The ammonium chloride is diluted by the water, so it's not as concentrated as before. The only time that it will be a chemical change will be when the ammonium chloride reacts with water, that is, IF it reacts with water.
Is heating ammonium chloride crystal a physical or chemical change?
Heating ammonium chloride crystal is a physical change, as it only involves a change in state from a solid to a gas without forming any new substances.
Is ammonium chloride a sublime substance?
Ammonium chloride is a solid formed when two gasses (NH3(g) and HCl(g) ) are put together. (--> NH4Cl(s) )It may be called 'chemical sublimation', though literally speaking this is a 'contradictio in terminis'.This looks like a solid cloudy smoke coming out of gas, very much the same as the pure physical sublimation of iodine gas to iodine crystals or the formation of hoar-frost (ice from humid freezing air)
Is sublimation a chemical or physical?
Physical
Is sodium chloride and ammonium chloride the same?
No, sodium chloride (table salt) and ammonium chloride are different compounds. They have different chemical formulas (NaCl and NH4Cl, respectively) and physical properties. Sodium chloride is commonly used as a seasoning and food preservative, while ammonium chloride is used in various applications like in cough medicines and as a flux in soldering.
Is ammounium chloride and water a physical or chemical change?
When ammonium chloride(NH4Cl) is dissolved in water the solvation process itself is a physical change, NH4Cl changes from one of its state (crystalline) to solution, where NH4+ and Cl- ions are surrounded by water molecules.
Why does ammonium chloride disappear when kept open?
Ammonium chloride appears to sublime but in this process solid NH4Cl actually (chemical) decomposition into ammonia and hydrogen chloride gas is involved. NH4Clsolid → NH3,gas + HCl,gasAmmonium chloride only likes to be a sublimable solid (one which changes from the solid state to gaseous state without passing through the intermediate liquid state)it sublimes at room temperature ie 25 degree centigrade thus it evaporates,and disappears when kept open.A real example of (pure physical) sublimation is Iodine, I2,sol → I2,gas
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.
