4. What happens when potassium reacts with:
(a) water?
(b) dilute sulphuric acid?
(C) oxygen?
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Hydrogen gas is given out in the reaction and potassium hydroxide is formed. Potassium nitrate (KNO3), also known as saltpeter, is an important compound of Potassium which is used in the production of fertilizers, matches, gunpowder and pyrotechnics
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a) It produces potassium hydroxide and release hydrogen gas
b) it produces K²SO⁴ + H²
c) it produces K²O²
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