Question

6. Complete and balance the following reactions:
(0). Cu + HNO3(dilute) →
(ii). Zn + NHO3 (conc) →
(iii). P4 + HNO3 (conc) →
1​

Answer 1

answer:--. (i) 3Cu+8HNO 3(dilute) ⟶3Cu(NO 3 ) 2 +2NO+4H 2 O

(ii) Zn+4HNO 3 ⟶Zn(NO 3 ) 2 +2NO 2 +2H 2 OZn added in dilute HNO 3

(iii) P4 + 20HNO3 → 4H3PO4 + 20NO2 + 4H2O

hope it helps you ❤️...

Answer 2

Required answers :

$\bf i) \ Cu \ + \ 4HNO_3 \ (dilute) \ \longrightarrow \ Cu(NO_3)_2 \ + \ 2NO_2 \ + \ 2H_2O$

$\bf ii) \ Zn \ + \ HNO_3 \ \longrightarrow \ Zn(NO_3)_2 \ + \ 2H_2O \ + \ 2NO_2$

$\bf iii) P_4 \ + \ HNO_3 \ \longrightarrow \ H_3PO_4 \ + \ H_2O \ + \ NO_2$

Additional Information :

◈ Balanced chemical equation : When an atoms of an each element remains same at reactant and product side is called as balanced chemical equation.

$\red {\sf Example :}$

◈ $\sf 2H_2 \ + \ O_2 \longrightarrow 2H_2O$

◈ $\sf Zn \ + \ 2HCL \longrightarrow ZnCl_2 \ + \ H_2$