(30 points.........!!!!) I want to make a project file on science chapter- "is matter around as pure". give me brief description of the chapter, point to point.
pages:-
min: 15
max: 30
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Anonymous:
plzz answer me this quickly..........!!!
and add some pics related to it.........!!!
you can make it in word so that there will not be any word limit........!!!
plzz help
sorry i think it is too short for u.....
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Impure substances are commonly called mixtures. A mixture is a material containing two or more elements or compounds that are in close contact and are mixed in any proportion. The constituents of mixtures exhibit their individual properties. These constituents can be separated by physical means. Example: air, gunpowder, etc.
Mixtures can be homogeneous or heterogeneous. A homogeneous mixture has a uniform composition through out its mass. For example, sugar or salt dissolved in water, alcohol in water, etc. While in a heterogeneous mixture the composition is not uniform throughout its mass. Different portions of a heterogeneous mixture show different properties. There are visible sharp boundaries. Example: Oil and water, salt and sand, etc.
Mixtures can be homogeneous or heterogeneous. A homogeneous mixture has a uniform composition through out its mass. For example, sugar or salt dissolved in water, alcohol in water, etc. While in a heterogeneous mixture the composition is not uniform throughout its mass. Different portions of a heterogeneous mixture show different properties. There are visible sharp boundaries. Example: Oil and water, salt and sand, etc.
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you can make it in ms word too! so that there will not be any word limit. ^_^
but.... thnx
ok...
:)
sorry i forgot to c the min max pages in a hurry. u asked fast help so i didnt saw it...
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is this allowed here
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