0
That depends on what the substances are and how they are combined or mixed. Something like ethano and water can be separated by distillation, the process taking only a few minutes, but something like a mixture of uranium-235 hexafluoride and uranium-238 hexafluoride must be split by centrifuge, the process takinf weeks to separate a small amount. Other ways of separating a mixture include melting (if it is a solid) and using density properties; dissolution, decanting and evaporation (where one or more substances are soluble in the given solute and others are not); recrystallisation (normally to remove impurities).
Wiki User
∙ 14y ago
Wiki User
∙ 12y agothe way you would separate a compound would be solubility
Wiki User
∙ 14y agoEvaporate one of the chemicals how would i seperate the chemicals hydrogen and carbon from gasoline?
Wiki User
∙ 11y agoIt depends on the compound. NaCl is best electolyzed molten as an example.
Wiki User
∙ 6y agoDuring a chemical change the composition of the reactants is changed.
Add your answer:
Earn +20 pts
Are physical and chemical change different?
Physical change does not produce a new substance. Chemical change produces a new substanceIn a chemical change the atoms/molecules are chemically joined together so they are very hard to separate. were as they are easyer to separate in a physical change
Is separate sand from gravel chemical change?
No, it's a physical change because you can still separate the two from each other.
Is saltwater a chemical reaction?
Adding salt to water is not a chemical reaction, nor is it a chemical change. When salt dissolves in water, this is an example of a physical change. Although the sodium and chlorine ions separate in the water, no chemical reaction takes place.
if you add eggs and milk and stir is that chemical or physical change?
physical, because you can technically separate the milk and eggs again.
Is converting iron to a steel alloy a physical change?
It is a physical change as an alloy is a solid solution made from various metals. As you can still separate these different metals after the alloy is made it is a physical change and not a chemical change.
If milk and vinegar is mixed is it a physical or chemical change?
its a chemical change because you cannot reverse the process and just have milk and vinegar separate
Are physical and chemical change different?
Physical change does not produce a new substance. Chemical change produces a new substanceIn a chemical change the atoms/molecules are chemically joined together so they are very hard to separate. were as they are easyer to separate in a physical change
Is separate is a physical or chemical change?
when you separate a substance from a mixture, it's a physical change... Technically, you can get it back in the mixture.
Is dissolving salt in water a example of a chemical change?
No. It is a physical change. All you have to do to separate the two is to evaporate the water. There is no chemical change.
Is separate sand from gravel chemical change?
No, it's a physical change because you can still separate the two from each other.
Is dissolved salt in ocean water an example of a chemical change?
No. It is a physical change. All you have to do to separate the two is to evaporate the water. There is no chemical change.
Is using electricity to separate water into hydrogen and oxygen a chemical change?
physical change
Does the method of distillate separate the physical or the chemical change of a substance?
both
How could you prove to someone that the dissolving was a physical to change not a chemical change?
You could separate it all out.
When cookies baking gives aff a sweet smell is it a chemical change?
Whether they give off a sweet smell or not, baking is a chemical change. Can you separate the egg, the flour, the sugar? No, then it is a chemical change.
Why will a chemical change not separate a mixture?
It depends ont eh chemical change, because in some changes not all the components of the mixture are used.
A collection of matter made of substances that stay separate and keep their properties is a?
A physical change, and a chemical change.
