Question

Why is Cu+2HNO3 =Cu(NO3)2 + H2 this reaction possible​

Answer 1

Applying POAC ( principle of atomic conservation) or the law of conservation of mass on H and N atoms.

Here are 4H on RHS of the equation.

Hence, the value of x should be 4.

N atoms on LHS of equation =4

N atoms on RHS of equation is =2+y

4=2+y

y=2

So, overall reaction is, Cu+4HNO  

3

​  

→Cu(NO  

3

​  

)  

2

​  

+2NO  

2

​  

+2H  

2

​  

O.

Explanation;

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Answer 2

Explanation:

$\huge\bold\red{ANSWER}$

It is Cu+2HNO3

Cu(NO3)2 + H2 this reaction possible because Cu+2 is not stable

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