Q11 of 29 Page 85

How would you write 2 molecules of oxygen and 5 molecules of Nitrogen.

For oxygen:


⇒ First, write the symbol of oxygen –


⇒ Now write 2 as a subscript after O –


For nitrogen:


⇒ First, write the symbol of nitrogen –


⇒ Now write 5 as a subscript after N –


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