Question

Write the Composition of the following materials by means of chemical formula and classify them accordingly

Answer 1

Explanation:

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Water ,. chemical formulae is H2O. it is an inorganic substance. liquid in nature carbon ,. is solid in nature , organic compound symbol is C. oxygen is a gas in nature it occurs in form of molecule i.e O2. aluminium is a solid i.e metal it's symbol is Al it is inorganic in nature

Answer 2

Answer :-

1 . Water - H2O - It is in Liquid state .

2 . Carbon - C - It is in Solid state .

3 . Oxygen - O2 - It is in Gaseous state .

4 . Air - There is no molecular formula of air . Therefore , we write chemical composition of air :

i) Nitrogen - 78%

ii) Oxygen - 20.9%

iii) Carbon Dioxide - 0.03%

iv) Inert Gases - 0.98%

v) Water Vapour - 0.1%

5 . Aluminium - Al - It is in Solid state .

6 . Brass - CuPbZn - It is in Solid state .

7 . Carbon Dioxide - CO2 - It is in Gaseous state .