ICSE Std 8 Chemistry- Molecular Formula || Language of Chemistry

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ICSE/Std VIII/Chp 5- Language of Chemistry- Molecular Formula
Explanation about how to write molecular formula for any compound.
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Questions likely to asked from above video: (POST "👍" ( & que no.)IN A COMMENT IF YOU GET QUESTIONS IN EXAM FROM THESE)
1) Write molecular formula for following compounds:
a) calcium carbonate b) zinc oxides c) potassium sulphate
2) write valency for the following elements
a) sodium b) oxygen c) sulphide

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It's easy now, last moments revision 👍

chandrashankar