. (i) What do you understand by the term chemical
formula ?
(ii) What qualitative information is given by the formula
NH3 ?
Answers
Answer:
1 Ans chemical means involving or resulting from a reaction between two or more substances, or relating to the substances that something consists of
Explanation:
(i)A chemical formula is the short way to represent a chemical compound.It also defines the the no. of atoms present in a chemical compound.These are represent by the element symbol,atomic no. and sometimes by other symbol.Like potassium-K
Sodium-Na etc example of chemical formula-Co2,H2O,Nacl etc
(ii)NH3-Ammonia
Ammonia has three atoms of hydrogen and one atom of nitrogen.This compound mainly exist in gaseous state and has a pungent smell which is its characteristic.It is the smell that one will recognise that it is ammonia.
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