An alloy is a mixture of metals (or metals with other elements such as carbon). Why you might use them in a practical depends on what you are trying to find out. It would be unlikely that you would use them in simple chemical reactions as you usually want pure substances for that. I wonder if you mean why are they good for practical applications? They often behave in different ways from their constituents and these behaviours make them useful. For instance a mixture of lead and tin melts very easily so it's used for solder. Steels are alloys of iron with carbon and other metals and can be made with a wide range of useful properties.
An alloy is a mixture of metals or metals and elements such as bronze which is tin and copper. It is good to use in practical so people know what your talking about.
An alloy is a mixture of 2 or more metals. This creates metals with different properties bronze is a good example of an alloy which is made from tin and copper.
An alloy is a mixture of two or more elements, generally metals; alloys have better chemical and physical properties than a single metal.
subtitutional alloy and interstitial alloy
A steel alloy that contains titanium can withstand greater temperatures. A special alloy is used for superconducting magnets.
Brass is an alloy of copper and zinc. Bronze is an alloy of copper and tin. Copper is a very good conductor of electricity.
phosphorus
The copper nickel alloy is preferred for marine operation because of its good resistance to sea water corrosion.
It refers to things you are good at practically - carpentry, metalwork, decorating, and so on.
it is depending upon our knowlage .......because of in studyes have only to got a good mark and score well but he did not have any pratical knowlage so we improve our pratical aswell as theory exam .....
Yes
The application of scientific knowledge in practical devices is called Technology.
titanium
burning rubber with salt helps in raining ,scientist have done pratical on this project also.
Solder wire is an alloy of tin and lead.
An alloy is something you get when you mix two or more metals up, they're usually better in some way than either of the pure base metals.Most metal items that we use are alloys.But alloy as such doesn't say anything, it's like saying "is a meal containing meat any good". There can be both good and bad things made out of alloys.Before you can say if it's bad or good, you need to know brand and model, and not only that it's made from an alloy.
subtitutional alloy and interstitial alloy
How good something is isn't only settled by which material it is made of. Alloy bicycles cover the whole range, from really good to quite poor.
Alloy is a mixture of metal and another element. An example sentence would be: The alloy mixture actually worked perfectly.
A steel alloy that contains titanium can withstand greater temperatures. A special alloy is used for superconducting magnets.