Question

.What is meant by precipitation reaction,exo thermic reaction and Oxidation reaction? Wire balanced

chemical equations for an example of each​

Answer 1

Answer There are some chemical reactions in which a solid get separated from the solution. These processes are called precipitation reaction. ... When heat is released by giving hot sensation in solution or in solution such reactions are called exothermic reactions.EgAn example of a precipitation reaction: Aqueous silver nitrate (AgNO3) is added to a solution containing potassium chloride (KCl), the precipitation of a white solid, silver chloride (AgCl), is observed. ( Zumdahl, 2005) The silver chloride (AgCl) has formed a solid, which is observed as a precipitate.

Answer 2

Answer:

PRECIPITATION REACTION :- the reaction in which white precipitate is formed is called precipitation reaction.

For example : Na²SO⁴ (aq) +BaCl²(aq) -> BaSO⁴(s) +2NaCl(aq)

In which BaSO⁴ is white precipitate .

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Exothermic reaction:- reaction in which heat is released along with formation of products.

For example : CH⁴ + O² -> CO² + 2H²O +heat .

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Oxidation reaction :- the addition of oxygen to reactant and the removal of hydrogen from a reactant is called oxidation reaction .

For example : 2Cu + O² --> 2CuO .