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this is a chemical change cause you can't return it back to solid salt
No, dissolving salt is purely physical. Salt isn't changed when the water is evaporated (drying is physical as well)
No, this is a physical change.
The way to determine this is by seeing if you can get the original substance back after completing the change. For example, combustion, or the act of burning something, is a chemical change. If you burned a piece of paper, you would get a pile of ash, which is nearly impossible to turn back into a piece of paper. This indicates a chemical change. However, if you dissolve salt in water, it is very easy to get the salt back: just evaporate the water. This indicates a physical change.
this is a chemical change cause you can't return it back to solid salt
No, dissolving salt is purely physical. Salt isn't changed when the water is evaporated (drying is physical as well)
Salt dissolving in water is a physical change. No new substances are formed.
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Is making salt water to gargle for a sore throat a chemical or physical change?
Yes dissolving salt in water is a physical change. The chemical structure was not changed, no chemical reaction took place, no precipitate formed and so on.The best way to tell the difference between a chemical and physical change is the ability to change the substances back to the way they were.Salt can be removed from water through evaporation of the water leaving both substances chemically the same before the salt was added.However there is some debate upon this. Just go with whatever your teacher says.
Is salting the ice on the sidewalk a chemical change?
Yes. The melting point of salt solutions is lower than that of pure water.
Is table salt boiling a physical or chemical change?
Physical. It would seem logical to assume that this is a chemical change but since neither the composition of salt (generally NaCl [sodium chloride] in this case) nor the composition of water changes, it is actually a physical change rather than a chemical change.There are 4 ways to indicate if a chemical change has occurred:1. There is a temperature change (endothermic = cooler, exothermic = warmer).- There would be no significant temperature change in the process of distilling the water independent of applying heat to the substance.2. There is a change in hue (color); this does not include changes in tint (darker to lighter) or saturation (lighter to darker [shade]).- There would be no change in hue of the solution after the distillation of salt water takes place.3. A precipitate was made (solution becomes cloudy), meaning a solid was made.- The solution does not become cloudy, meaning no solid was created (all components involved are soluble).4. A gas was formed, which is indicated by the formation of bubbles independent of the influences of stirring (bubbles rising occurs persistently after a few minutes or so).- No gas is formed in the process of distilling the salt water.
What is dissolving salt into water an example of?
No, this is not a redox reaction (or a chemical reaction at all) because no species gain/lose electrons in this process.
Is mixing salt and sugar a physial change?
No, mixing sugar and chocolate is not a chemical change. It's a physical change.
Is mostly likely a chemical change salt dissolving in water or a match burning?
A match burning is a chemical change. Salt dissolving in water is a physical change.
Is dissolving salt in water a physical or chemical change?
Dissolving salt in water is a physical change because the salt molecules stay intact and only disperse in the water, without undergoing a chemical reaction.
Is salt dissolving in water physical change?
Yes, salt dissolving in water is a physical change because it does not involve a change in the chemical composition of the salt. The salt molecules are simply dispersed in the water, but they remain the same chemical substance.
Is disslolving salt a chemical change?
Dissolving in water is a physical change.
Is salt dissolving in a glass of water a chemical change?
No. It is a physical change.
Is dissolving Skittles in salt and water a chemical or physical change?
Dissolving Skittles in salt and water is a physical change. The Skittles are still the same chemical compounds, but they are now dispersed throughout the water-salt solution.
Is dissolving common salt in water physical or chemical change?
Dissolving is a physical process.
Is salt dissolving in water and leaving a white residue a physical or chemical change?
The process of salt dissolving in water and leaving a white residue is a physical change. Dissolving salt is a physical change as it does not involve a change in the chemical composition of the salt or water. The white residue is likely salt that has precipitated out of the solution as the water evaporated.
Is combining water and salt physical or chemical change?
Dissolving in water is a physical change.
Salt dissoved in water physical or chemical change?
Dissolving in water is a physical change.
Is dissolving salt in water chemical or physical change?
Dissolving salt in water is an example of a physical change. Although the ions of sodium and chlorine separate when the salt dissolves, no chemical reaction takes place.
Is dissolving of salt physical change or a chemical change?
The dissolving of salt in water is a physical change because it does not result in a chemical reaction. The salt molecules are simply breaking apart and becoming dispersed in the water, but there is no change in the chemical composition of the salt.
