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Potassium metal does not dissolve in water, it is so reactive that it rips water molecules apart releasing hydrogen gas and combining with the remaining hydroxyl group to form potassium hydroxide (potash lye) which then dissolves in the water. This chemical reaction releases so much heat that it ignites the hydrogen gas that was emitted which produces water vapor/steam and a light purple flame (caused by excited potassium ions).
Wiki User
∙ 9y ago
Wiki User
∙ 11y agoit is a physical change because it inculdes dissolving. potassium permanganate dissolves in water to give the substance a purple colour.
Wiki User
∙ 6y agoPotassium chloride dissolving in water is a physical change.
Wiki User
∙ 8y agoDissolution is a physical change.
Wiki User
∙ 8y agoThis is a chemical change.
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Is dissolving sodium carbonate a chemical change?
No, dissolving is a physical change
Is the dissolving of zinc in acid a physical or chemical change?
chemical change
Is dissolving NaCl in h2o a chemical change?
No, it is a physical change.
Is Acid rain dissolving paint off a wall a chemical change or physical change?
Chemical change
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Dissolving salt in soup is a physical change.
Do potassium iodide and water create chemical reaction?
No, only dissolving of KI but that is a physical change.
Is dissolving a physical or chemical wikianswerscomQIs dissolving a physical or chemical change?
Dissolution is a physical change.
Is dissolving in water a chemical change?
Dissolving in water is a physical change.
Is dissolving sodium carbonate a chemical change?
No, dissolving is a physical change
Is potassium a physical or chemical change?
Potassium is not a change; potassium (K) is a chemical element.
Is dissolving of sugar a chemical change?
yes, it is a chemical change.
Is dissolving cornstarch a chemical change?
Dissolving is a physical process.
Is cofee dissolving in water a physical or chemical change?
It is a physical change.
Is dissolving oxygen gas and water a physical change or chemical change?
Dissolving in water is a physical change.
Is dissolving a drink mix with water a chemical change?
Yes. Dissolving drink mix does not change its chemical composition.
Is the dissolving of zinc in acid a physical or chemical change?
chemical change
What is chemical change when dissolving?
1. Dissolving with reaction - an example is dissolving in an acid - involve a chemical change because new compounds are formed. 2. Dissolving without a reaction - for example dissolution of table salt in water - is not a chemical change; only dissociation can occur.
