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Subject: Science, asked on 16/9/17

What are the two forms of oxygen found in atmosphere ?

Subject: Science, asked on 16/9/17

explain the process of chromatography.

Subject: Science, asked on 14/9/17

Differentiate suspension colloids and true solutions through their feature in a tabular form

Subject: Science, asked on 14/9/17

what is chromatography? state its principle. write one advantage of chromatography over other techniques.

Subject: Science, asked on 14/9/17

Please answer these questions within today as I've my exams tomorrow .They are really URGENT .Hopeyou answer them ..Please .Thanks a lot .Oh ues !I couldn't ask them in different threads as I am in a shortage of time .Hope you would understand that.
 

Subject: Science, asked on 14/9/17

Please answer these questions .I cant ask them individually as Im in a lack of time .VERY VERY URGENT
 

Subject: Science, asked on 13/9/17

Identify the solute and the solvent in 22 carat gold.

Subject: Science, asked on 11/9/17

in the last doha of rahim what is the meaning of uubray

Subject: Science, asked on 10/9/17

What is the basic principle of sublimation?

Subject: Science, asked on 7/9/17

How will you account for the following-

a. a mixture of ammonium chloride and camphor cannot be separated by sublimation

b. rusting of iron is a chemical change

c. electrolysis of water is a chemical change

Subject: Science, asked on 4/9/17

what is the criteria for a mixture to become homogeneous

Subject: Science, asked on 4/9/17

why is air regarded as homogeneous mixture?is it heterogeneous??

Subject: Science, asked on 2/9/17

Solve this:

Subject: Science, asked on 31/8/17

If X is heated A and B is formed. What is X?
a)metal
b)element
c)non-metal
d)compound

Subject: Science, asked on 30/8/17

what is the difference of colloids of nature? kindly answer fast.....

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