Make up the reaction equation: K – K2O – KOH – KNO2

To transform the above chain of elements, we need to carry out three reactions. To begin with, in order to obtain potassium oxide from potassium, we need to perform the following reaction:

2K + 2KOH = 2K2O + H2

also in this reaction hydrogen is released.

Next, from potassium oxide, we need to obtain potassium hydroxide for the reaction, we need to add water.

K2O + 2H2O = 2KOH + H2O

potassium hydroxide and water are formed.

To obtain potassium nitrate from potassium hydroxide, we carry out the following reaction, add potassium nitrate salt to potassium hydroxide.

KOH + HNO2 = KNO2 + H2O