It reacts violently, fizzes about on the surface and then: BOOM!!!
BOOM!
When potassium reacts with water, it forms potassium hydroxide and releases hydrogen gas. When potassium reacts with oxygen, it forms potassium oxide.
The potassium catches on fire and then explodes. Seriously. Don't try it.
Potassium metal will react violently with water to form KOH and hydrogen gas. Due to the heat released by the reaction - the hydrogen gas will ignite. So: placing potassium in water will cause a fire!
Silver iodide (AgI), a precipitate insoluble in water, don't react with potassium nitrate.
When potassium hydroxide is added to hydrochloric acid, a neutralization reaction occurs. Potassium chloride and water are formed as products. The reaction also releases heat as the substances react to form salt and water.
Solid, pure, potassium metal will react violently with water to form hydrogen gas. Often this hydrogen gas will ignite causing a flame and sometimes an explosion.
When potassium permanganate is dropped into water, the ions are solvated by the water molecules. This results because potassium permanganate is water soluble. Thus, the solid compound is separated into aqueous ions.
Lack of Potassium (hypokalemia) muscle weakness is one of the effects. ;-)
When potassium hydroxide (KOH) is mixed with hydrochloric acid (HCl), a neutralization reaction occurs. This reaction forms potassium chloride (KCl) and water (H2O). The products of this reaction are a salt (KCl) and water.
When potassium reacts with oxygen, it forms potassium oxide (K2O). The reaction is highly exothermic and produces a bright flame due to the high reactivity of potassium with oxygen. Potassium oxide is a white solid that can react further with water to form potassium hydroxide.
When potassium hydroxide and hydrochloric acid mix, a neutralization reaction occurs, producing potassium chloride (KCl) and water (H2O). This reaction is exothermic, meaning it releases heat. Potassium chloride is a salt that is soluble in water.