Simple Chemical Reaction
Chemical reaction is represented by chemical
equation in brief by taking help of symbol and formula of participating
substances in reaction.
General Rule for writing Simple Chemical Reaction
1. Reactant
are written on left hand side and if more than one reactant are present than
write plus (+) sign between them.
2. Product
are written on left hand side and if more than one product are present than
write plus (+) sign between them.
3. Arrow
sign is placed between reactants and products.
Example: Zn + H2SO4
( Reactants) ----->
ZnSO4 + H2 (Products)
4. To
get more information from the reaction write temperature, pressure, catalyst
name above or below arrow sign.
5. On
the right side of the gaseous substances sign and on
the left side of heavy substances which precipitate sign is placed.
6. Reactions
which absorb heat are known as endothermic reactions and (+Q)
heat sign is added on reactant side.
7. Reactions
which produce heat are known as exothermic reactions and (+Q)
heat sign is added on product side.
8. (Aq)
is written for aqueous solution substances.
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