Question

Balance the chemical equation

NO₂(g) + H₂O(l) ---> HNO₃(aq) + NO(g)

Pair each cation on the left with an anion on the right that will form a soluble compound with it and write a formula for the soluble compound. Use each anion only once.

Na⁺                                  NO^-     

Sr^{2 +}                               SO₄^2-

Co²⁺                             S^2-

Pb²⁺                                          CO₃^2-

Answer 1

Solution :-

Balanced reaction equation is as follows

3NO₂(g) + H₂O(l) ---> 2HNO₃(aq) + NO(g)                                                                                     

Pairing of the cation to anion is as follows

Na+ = CO3^2-

Sr^2+ =   S^2-

Co^2+    = SO4^2-

Pb^2+ = NO3^-

Formulas of the soluble compounds with given ions are as follows

Na2CO3

SrS

CoSO4

Pb(NO3)2