Potassium nitrate was thermally decomposed. The released gas was passed in the light through a saturated solution

bystudin | November 11, 2020 | Education

Potassium nitrate was thermally decomposed. The released gas was passed in the light through a saturated solution of hydrogen sulfide in water. The precipitated yellow substance was fused with iron, and the resulting salt was treated with dilute hydrochloric acid. Write the equations for the described reactions.

2KNO3 → 2KNO2 + O2↑
2H2S + O2 → 2S + 2H2O
S + Fe → FeS
FeS + 2HCl → FeCl2 + H2S↑

Remember: The process of learning a person lasts a lifetime. The value of the same knowledge for different people may be different, it is determined by their individual characteristics and needs. Therefore, knowledge is always needed at any age and position.