Carry out the transformation in 3 ways KOH-KNO3.

First way:
2KOH + N2O5 = 2KNO3 + H2O
Second way:
KOH + HNO3 = KNO3 + H2O
Third way:
2KOH + Cu (NO3) 2 = Cu (OH) 2 ↓ + 2KNO3 (blue precipitate of copper (II) hydroxide precipitates)



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