This is because sulphate is a thing that just dissolve in the water and changes the colour.
ferrous sulphate when it is heated it changes into red brown color
When an iron nail is placed in a copper sulphate solution, iron displaces copper from copper sulphate solution forming iron sulphate, which is green in colour.Therefore, the blue colour of copper sulphate solution fades and green colour appears.
When heated, copper sulfate undergoes a reversible physical change where it loses its water molecules (dehydration) and changes color from blue to white. This process is purely physical and does not involve any chemical reactions.
It turns into blueish clear crystals but only if u don't have a lid on it when it is heated!add. as it is heated, the water of crystallization will be driven off, and soon you'll have a greenish powder.
actually blue salt of copper sulphate is chemically copper sulphate penta hydrate( CuSO4.5H2O ). blue coloure is due to thiese 5 moles of water . by heating this water evaporates and leaving CuSO4 which is colourless
Hydrous copper sulphate, when heated, turns into anhydrous copper sulphate and changes its color from blue to white. The blue color comes from the water molecules bound to the copper sulphate crystals, and when heated, these water molecules are removed, resulting in a color change.
green
Blue...but you could just google this in google images...??
The color of ferrous sulphate solution is pale green or light green.
When hydrated ferrous sulfate is heated, it loses its water molecules and undergoes thermal decomposition. The color change is from pale green (hydrated) to white (anhydrous).
Copper sulphate's colour is blue.
When copper sulfate is added to sodium hydroxide, a blue precipitate of copper hydroxide is formed. The color change observed is from the initial blue color of copper sulfate to the blue precipitate of copper hydroxide.
Ferrous Sulphate, also known as Iron (II) sulphate or green vitrol is green.
Sulfate/Sulphate dissolved in water is blue in color. That's COPPER sulphate; there are many other sulphates which have many different colours, or are colourless.
Blue-Green.
When ferrous sulphate crystals are heated, they lose water molecules and undergo dehydration, forming a white powder known as anhydrous ferrous sulphate. This process is also known as thermal decomposition.
ferrous sulphate when it is heated it changes into red brown color