Answer:
The answer to your question is KNO₃ is soluble and Fe(OH)₃ is insoluble.
Step-by-step explanation:
Data
Potassium hydroxide (KOH)
Iron nitrate Fe(NO₃)₃
Double displacement reaction
3KOH + Fe(NO₃)₃ ⇒ 3KNO₃ + Fe(OH)₃
Conclusion
KNO₃ is soluble because compounds containing alkali metals ions are
soluble and also compounds containing nitrate ion are soluble.
Fe(OH)₃ is insoluble because compounds containing OH are insoluble
except Ba(OH)₂