4K + O2 ---> 2K2O
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Potassium reacts with oxygen to form potassium oxide. When heated, potassium metal reacts vigorously with oxygen to produce potassium superoxide. Balancing the equation for this reaction would show 4K + O2 -> 2K2O.
When potassium, oxygen, and iodine combine, they form potassium iodate (KIO3). This compound is commonly used in iodized salt to prevent iodine deficiency.
An equation refers to a reaction, not an individual compound. The formula of potassium oxide is K2O. If you mean the equation for its formation from the elements, it is 4K + O2 --> 2K2O.
Potassium can combine with other elements to form compounds. For example, potassium chloride (KCl) is a common compound where potassium combines with chlorine. Potassium can also combine with oxygen to form potassium oxide (K2O).
One potassium atom can combine with one chlorine atom to form potassium chloride.
Yes, potassium nitrate (KNO3) contains oxygen. It is composed of potassium, nitrogen, and oxygen atoms.