Question
What is the valency of :
fluorine in CaF2
Solution
-1
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What is the valency of :
fluorine in CaF2
-1
What are polyatomic ions? Give two examples.
Name the fundamental law that is involved in every equation.
What is the valency of :
fluorine in CaF2
What is the valency of :
sulphur in SF6
What is the valency of :
phosphorus in PH3
What is the valency of :
carbon in CH4
What is the valency of :
nitrogen in the following compounds:
(i) N2O3 (ii) N2O5 (iii) NO2 (iv) NO
Why should an equation be balanced? Explain with the help of a simple equation.
Write the balanced chemical equations of the following reactions. sodium hydroxide + sulphuric acid → sodium sulphate + water
Write the balanced chemical equations of the following reactions. potassium bicarbonate + sulphuric acid → potassium sulphate + carbon dioxide + water
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