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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 else can I help you with?
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 a skateboard a physical change?
No its a chemical 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 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 sanding a table top a chemical change?
Nope... sanding a table top 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 formation of table salt a physical or chemical change?
Formation of NaCl from chlorine and sodium is a chemical process.
When table salt is added to water the ionic compound dissolves. Does this represent a physical change or a chemical change?
Dissolving table salt in water represents a physical change, not a chemical change. The salt molecules remain intact and simply disperse in the water, without any chemical bonds being broken or formed.
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.
How could you prove that table salt in water is a phyical change not a chemical change?
that is because salt is a physical matter
Is fashioning a table leg from a piece of wood chemical or physical changes?
Fashioning a table leg from a piece of wood involves physical changes. The process of cutting and shaping the wood is a physical change as the composition of the wood itself remains the same, just the form and size are altered.
