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CBSE Class 9 Answered

5g of calcium combine with 2g of oxygen to form a compound.find the molecular formula of the compound.(atomic mass of Ca=40u , O=16u)
Asked by aishu13 | 11 Mar, 2011, 06:59: PM
answered-by-expert Expert Answer
If ratio of calcium isto oxygen is 5:2 compound formed is 7 grams
Or ratio is 40 :16
The molecular formula will be CaO
2Ca +O2->2CaO
Answered by | 14 Mar, 2011, 05:06: PM

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