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CBSE Class 9 Answered

1)5g of calcium combines with oxygen to form a compound.Find the molecular formula of the compound
Asked by rohan | 20 Nov, 2013, 10:02: AM
answered-by-expert Expert Answer

Calcium combines with oxygen to form calcium oxide.

 

    2Ca    +      O2       →        2CaO

Calcium   Oxygen      Calcium oxide

Molecular formula:

Using the valency of the ions we can write the molecular formulae of compounds.

 

Therefore, the molecular formula of Calcium oxide is CaO.

Answered by Hanisha Vyas | 20 Nov, 2013, 11:30: AM

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