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hichkok12 [17]
3 years ago
15

2 Pb(NO3)2 – 2 PbO + 4 NO2 + O2

Chemistry
1 answer:
WARRIOR [948]3 years ago
8 0
<h2>2 Pb(NO3)2 – 2 PbO + 4 NO2 + O2: Decomposition reaction </h2>

Explanation:

Chemical reaction

When two or more substances react and form some new substance it is called as chemical reaction .

There are so many reactions , out of which decomposition is also one type .

It is explained below :

Decomposition reaction

it is the type in which a reactant breaks up into its constituents  either by heating or passing current or in presence of light .

That is :  

(a) Photo decomposition (breaking in presence of light )  

Examples AgCl-----Ag+Cl₂

                (white )  (grey )

(B)Electrolytic decomposition : breaking by passing current  

Example : NaCl------Na+Cl₂

©Thermal decomposition : breaking by heating )

Example : Pb(No₃)₂-----PbO+NO₂+O₂

                                                                          (reddish brown gas )

ACTIVITY TO DEMONSTRATE : heating of ferrous sulphate  

FeSO₄.7H2O------FeSO₄+7H₂O

(GREEN )

FeSO₄-----------------heat -------Fe₂O₃+SO₂+SO₃

This question is done considering : Identify the type of reaction

2 Pb(NO3)2 – 2 PbO + 4 NO2 + O2

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