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It is the characteristic colour of a barium flame.
White
BLUE
No colour
This is a simple displacement reaction - the more reactive magnesium displaces the less reactive copper from a solution of its salt. .... magnesium + copper sulphate ---> copper + magnesium sulphate Mg + CuSO4 ----> MgSO4 + Cu the blue colour of the copper sulphate will disappear and the silver coloured magnesium will be replaced by brown-red copper metal. Hope this helps. :)
Pale green
The copper plates out while the zinc dissolves, leaving a transparent zinc sulphate solution.
You can attempt to pass the gas into aqueous acidified potassium manganate(VII). Sulfur dioxide turns it from purple tocolourless.It forms a white precipitate of barium sulphate when passed through a solution of barium chloride and chlorine water.
aluminum sulphate is colourless
You have to specify the sulphate of which element.
It is the characteristic colour of a barium flame.
Anhydrous copper sulfate solid is white. When it is added to water, it dissolves and the solution of aqueous copper sulfate becomes blue.
White
pink
Colourless
colourless
BLUE