Question

What do you mean by rate of a reaction explain giving examples?

Answer 1

Reaction rate,the speed at which a chemical reaction proceeds.It is often expressed in terms of either the concentration of a product that is formed in a unit of time or the concentration of a reactant that is comsumed in a unit of time. Alternatively it may be defined in terms of the amounts of the reatants comsumed or products formed in a unit of time. Example A+3B >2Z

Answer 2

➽━━━━━━━━━━━━━──➸

☺ Hello mate__ ❤

◾◾here is your answer...

✒ PRECIPITATION REACTION:-- A reaction in which an insoluble solid (also called precipitate) is formed is called a precipitation reaction.

✒SOME EXAMPLES OF THAT TYPE REACTION:--

1) Na2CO3 (aq) + CaCl2 (aq) ---> CaCO4 (s) + 2NaCl (aq)

Here,

#Na2CO3 = sodium carbonate

#CaCl2= calcium chloride

#CaCO4= calcium carbonate

#NaCl= sodium chloride

--»» In this reaction, calcium carbonate is a precipitate.

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

Here,

# Na2SO4= sodium sulphate

# BaCl2= barium chloride

# BaSO4= barium sulphate

# NaCl= sodium chloride

--»» In this reaction, barium sulphate is obtained as a precipitate.

➽━━━━━━━━━━━━━──➸

I hope, this will help you.☺

Thank you______❤

✿┅═══❁✿ Be Brainly✿❁═══┅✿