Question

write the molecular formula of compounds calcium oxide hydrogen sulfide carbon monoxide and lead sulphide

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Answer 1

Answer:

Compound Calcium oxide is formed of elements calcium (Ca) and oxygen (O)

Symbols combining power Here subscript number is same Ca2 Formula of calcium oxide is CaO Compounds Hydrogen sulphide is formed of elements

Hydrogen (H), sulphide (S)            

Symbols combining power  

Formula is H2S

Compound Carbon monoxide is compound of elements

Carbon (C) and oxygen (O)

Formula of carbon monoxide is CO

Formula of lead sulphide is pbs

Symbols combining power

Pb2 S2                              Pbs

Here the subscript numbers is same.

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Answer 2

calcium oxide -CaO,hydrogen sulfide-H2S,carbon monooxide-CO,lead sulphidepbS2