Question

Which are the mixtures and pure substances from the following
1) diamond
2) sea water
3) gasoline
4) rusty nail
5) skin
6) page of text book
ans the Q and have a brainly mark

Answer 1

Answer:

daimond is pure

and no other thing is pire

Answer 2

Solution:  

Seawater: A mixture of dissolved organic and inorganic compounds, solid particulates, biologic organisms and remains, and some gases.

Gasoline: A homogenous mixture of petroleum compounds or hydrocarbons (lightweight – C4-C12) with alkanes like paraffin, alkenes like olefin etc.

Skin: A complex mixture of many substances like carbohydrates, lipids and fatty acids, proteins like pigments, multiple minerals, organic compounds like esters etc.

A rusty nail: A mixture of iron and oxygen since the iron gets oxidized in the presence of moisture

A page of the textbook: A mixture of many elements or chemicals that are used for making the paper, ink, adhesives, for printing and binding etc

Diamond: is a pure substance since it is made up of molecules of a single type which is carbon molecules.