0
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.
Wiki User
∙ 11y ago
Wiki User
∙ 12y agoTo separate one substance from the other is a physical change. According to the substances involved, it may be also a chemical change, since the boiling is a modifier agent. In this case, it is only a physical change. But, I didn't know that boiling seawater could separate salt from the water. I think that the whole process, called desalination involves different stages.
Wiki User
∙ 8y agoBoiling salt in water changes the salt crystals into a saline solution (salty water). Yet the salt remains, but as a liquid not a solid. Therefore, the change is physical, not chemical.
Wiki User
∙ 7y agoNaCl can be produced by chemical reaction of NaOH with HCl. This is a very dangerous reaction!
For food perposes table salt is made (physically) from sea-water or brine.
Wiki User
∙ 7y agoWhen making a compound like table salt from the elements in it, you are changing the properties of them (sodium and chlorine) into something else. This what is called a chemical change.
Wiki User
∙ 6y agoSalt water is only matter, not a change.
Dissolving in water is a physical change.
Wiki User
∙ 6y agoThis is a physical change.
Wiki User
∙ 6y agoDissolving in water is a physical change.
Add your answer:
Earn +20 pts
How do you use the periotic table?
You get a copy and pin it to your wall. All the elements are arrange on it in a sensible way, summarizing their physical and chemical attributes. As you get familiar with it you will be able to use it to predict the chemical and physical properties of new elements you are to be taught about.
What are the physical properties of table salt?
It is made of Sodium and Chlorine, And is called Sodium Chloride. It is a crystal structure, dissolves under water, and will not burn when heated.
Is table salt a substance or mixture?
It is a substance.
How does the periodic table summarize elements?
In the periodic table chemical elements are orderd in periods and groups.
What are elements and the periodic table?
An element is a substance that cannot be broken into simpler substances by chemical methods, such as Neon or Oxygen.The periodic table contain all known chemical elements.
Is the melting of table salt physical or chemical?
The melting point is a physical property of materials.
Is sanding a table top a chemical change?
Nope... sanding a table top is a physical change
Is possolving table salt in a glass of water a physical change of a chemical change?
It is a physical change because the chemical composition of the salt and water does not change.
Is a skateboard a physical change?
No its a chemical change
Is dissolving table salt is physical or chemical change?
Chemical change because physical change is just altering the physical appearance of something, like tearing a paper in half, that is a physical change.
Is dissloving a chemical or physical change?
Dissolving sugar or table salt in water is purely a Physical change
When table salt forms from its elements is it chemical or physical change?
It is chemical. It is chemical because when salt is formed from elements it becomes a chemical and not a physical.
Is dissolving table salt in a bowl of soup be chemical or physical change?
Dissolving salt in soup is a physical change.
Is formation of table salt a physical or chemical change?
Formation of NaCl from chlorine and sodium is a chemical process.
Is fashioning a table leg from a piece of wood chemical or physical changes?
Physical. Physical changes include things such as changing shape or color. Chemical changes change the chemical properties of a material, often during a chemical reaction.
How could you prove to someone that the dissolving of table salt was a physical change not a chemical change?
The chemical formula of sodium chloride is not changed by dissolution.
When table salt is added to water the ionic compound dissolves. Does this represent a physical change or a chemical change?
Dissolution is considered a physical process.
