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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).
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Is dissolving sodium carbonate a chemical change?
Dissolving sodium carbonate in water is a physical change, not a chemical change. This is because the chemical composition of sodium carbonate remains the same before and after dissolving.
Is dissolving powder into water a chemical change?
No, dissolving powder into water is a physical change, not a chemical change. The powder molecules are still the same chemical compounds as they were before dissolving, just dispersed in the water molecules.
Is sugar dissolving a chemical or phyical change?
Sugar dissolving in water is a chemical change because sugar is Sucrose which in aqueous solution is broken down into Glucose and Fructose.
Is Acid rain dissolving paint off a wall a chemical change or physical change?
The process of acid rain dissolving paint off a wall is a chemical change. This is because the acid in the rain reacts with the chemical components of the paint, causing a permanent change in its chemical structure.
How could you prove to someone that the dissolving was a physical to change not a chemical change?
You can demonstrate that dissolving is a physical change by showing that the chemical composition of the substance remains the same before and after dissolving. This can be done by evaporating the solvent and obtaining the original substance in its solid form. Chemical changes involve a change in the chemical composition of the substances involved, leading to the formation of new substances, which is not the case in dissolving.
Do potassium iodide and water create chemical reaction?
No, only dissolving of KI but that is a physical change.
Is dissolving sodium carbonate a chemical change?
Dissolving sodium carbonate in water is a physical change, not a chemical change. This is because the chemical composition of sodium carbonate remains the same before and after dissolving.
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 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 powder into water a chemical change?
No, dissolving powder into water is a physical change, not a chemical change. The powder molecules are still the same chemical compounds as they were before dissolving, just dispersed in the water molecules.
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.
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.
