You aren't asking anything I don't know how to this. But if you're wondering, potassium does react (explode) to cold water and air, because it's an alkali metal (a element on the very right group or column of the Periodic Table). All alkali metals really want to lose an electron, making them highly reactive, and the further down the alkali metals you go, the more reactive they are.
Potassium reacts violently with cold water, producing potassium hydroxide and hydrogen gas. The reaction is exothermic, releasing a significant amount of heat, which can potentially ignite the hydrogen gas, causing a small explosion. It is important to handle potassium with caution to prevent accidents.
if the water is cold then the crystal will take time to dissolve as particles move slowly when in cold water. therefore, after 5 minutes it will still be the same or if its normal water it will start to diffuse slowly.
They react pretty violently with water. These elements have 1 valence electron with makes them very reactive. When they are put in the water they split the water molecule into Hydrogen gas and NaOH or LiOH, etc. Lithium, sodium and potassium while violent reactions are pretty mellow compared to the reactions of Rubidium, Cesium and Francium. Search google video for cesium reaction with water and you will see what i mean.
The product of the reaction between cyclohexane and acidified potassium manganate VII (KMnO4) is cyclohexanol. This reaction involves the oxidation of cyclohexane to form cyclohexanol, facilitated by the oxidizing properties of potassium manganate VII in the presence of acid.
When the ammonium chloride dissolves in the water, it is an endothermic reaction. The energy for the reaction comes from the water. Since the water is losing energy, the temperature of the solution decreases, which in turn decreases the temperature of the beaker because of heat transfer.
Potassium reacts violently with cold water, producing potassium hydroxide and hydrogen gas. The reaction is exothermic, releasing a significant amount of heat, which can potentially ignite the hydrogen gas, causing a small explosion. It is important to handle potassium with caution to prevent accidents.
Both potassium and sodium react vigorously with cold water to form metal hydroxides and hydrogen gas. However, the reaction of potassium is more violent and produces a louder explosion due to its higher reactivity compared to sodium. Potassium reacts faster and more violently than sodium in water.
Rubidium, caesium and francium. Potassium will generate enough heat to ignite the hydrogen produced in the reaction but the reaction is not really explosive.
Potassium Manganate (VII) also called potassium permanganate, dissolves very quickly in hot water and much slower in cold water.
A reaction with water (hot or cold) is a chemical reaction.
When potassium nitrate dissolves in water, it absorbs heat from its surroundings to break the bonds between the ions, causing the solution to become colder. This process is called an endothermic reaction, which means it requires energy input to occur. This is why mixing potassium nitrate with water results in a cold sensation.
Sodium is a metal that can react explosively with water, releasing hydrogen gas and heat in the process. This reaction can be violent and dangerous, so it is important to handle sodium with extreme caution in the presence of water.
potassium hydroxide
When chlorine gas is added to cold dilute potassium hydroxide, it forms potassium hypochlorite (KClO) and potassium chloride (KCl). This reaction is represented by the equation: Cl2 + 2KOH -> KClO + KCl + H2O.
One would expect that the reaction between an alkene and cold, dilute potassium dichromate is an oxidation to a bifunctional alcohol at the carbons in the double bond. The result is also called a vincinal diol or a glycol. The reaction should be similar to the reaction of an alkene with cold, dilute potassium permangante, however, dichromate is a milder oxidizing agent and may not be as effective. The mechanism for this reaction involves the formation of an intermediete 'ester' with the metal at the carbons of the double bond, breaking the double bond. The it can be shown that the resonance structure of the intermediete complex transfers electron density to the ester linkage and protonates from water at both of the ester sites completing the oxidation.
if the water is cold then the crystal will take time to dissolve as particles move slowly when in cold water. therefore, after 5 minutes it will still be the same or if its normal water it will start to diffuse slowly.
When potassium, magnesium, and manganese are mixed with water separately, they will undergo different chemical reactions. Potassium will react vigorously with water, magnesium will react slowly to produce magnesium hydroxide and hydrogen gas, while manganese will not react with water under normal conditions.