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Why does the purple colour spread when a crystal of potassium permanganate is placed in water?
The purple color spreads when a crystal of potassium permanganate is placed in water due to the dissolution of potassium permanganate molecules in water. Potassium permanganate is a highly soluble compound, and its purple color comes from the permanganate ions in the crystal dispersing in the water. This dispersion allows the purple color to be visible throughout the water.
What is the color of potassium hypochlorite?
Potassium hypochlorite is typically a white or off-white solid powder.
What is the colour of potassium bromide dissolved in water?
Bromine is solution is orange/red depending on how dilute it is. Potassium permanganate solutions are purple.
What color does potassium give off when burned?
Potassium ions will emit visible light when excited, for example during a flame test. We see this as a lilac colour.
What colour precipitate forms for silver nitrate and potassium carbonate?
A white precipitate forms when silver nitrate and potassium carbonate react, due to the formation of insoluble silver carbonate.
What is the color of Potassium oxide?
When freshly cut it is silvery in colour but it quickly tarnished as it reacts with oxygen in the air. all alkali metals give characteristic flame colour wich are used to identify them potassium has the colour LILAC
What are the examples of diffusion in liquids in the house?
Adding water to a cordial is diffusion - the movement of the cordial from an area of high concentration to an area of low concentration ie dilution is an example of diffusion in liquids - also a crystal of potassium permanganate in water, watch the colour spread (diffuse out) as the crystal dissolves
Why does the purple colour spread when a crystal of potassium permanganate is placed in water?
The purple color spreads when a crystal of potassium permanganate is placed in water due to the dissolution of potassium permanganate molecules in water. Potassium permanganate is a highly soluble compound, and its purple color comes from the permanganate ions in the crystal dispersing in the water. This dispersion allows the purple color to be visible throughout the water.
Is potassium cloride dissolving in water a chemical change?
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).
Name the following binary compound K2Cr2O7?
The chemical name is, potassium dichromate. It is orange in colour. Dichromate ion gives colour for this compound.
What is the colour of potassium superoxide?
Potassium superoxide is yellow in color.
What is the colour of potassium nitrate solution?
Due to the potassium ion in potassium nitrate, any firework composition made with potassium nitrate would sport a purple/violet color, unless a strong colorant compound like strontium chloride is added to the composition.
what is the colour change observed when Potassium manganate reacts with ethanol?
Purple colour
What colour flame test do sodium sulphate and potassium chloride give?
well , the colour of potassium chloride is a lilac colour :) hope this helps
What is the colour of potassium bromide solution?
If pure, colorless.
What is the color of potassium chlorate?
Potassium chlorate is a white or colorless crystalline solid.
What is the colour of potassium cloride?
Pure potassium chloride is a colorless/white solid.
