Question

Write one of the reaction for each of the following characteristics
(a) Formation of precipitate
(b) Evolution of heat​

Answer 1

Answer:

a)Precipitation reaction

b)endothermic reaction

Explanation:

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Answer 2

Answer:

(a) Precipitates are insoluble ionic solid products of a reaction, formed when certain cations and anions combine in an aqueous solution. Some reactions depend on temperature, such as solutions used for buffers, whereas others are dependent only on solution concentration.

(b) According to the modern view of chemical reactions, bonds between atoms in the reactants must be broken, and the atoms or pieces of molecules are reassembled into products by forming new bonds. The opposite of endothermic is exothermic; in an exothermic reaction, energy as heat is evolved.