WebWhat happens when crystals of copper sulphate are heated in a test tube? Answer: The blue coloured copper sulphate crystals on heating loses water and turns white. Question 14: Why do we mb magnesium ribbon with sand paper before burning it? Answer: WebDoMyOwn.com

Preparing salts by neutralisation of oxides and carbonates

WebHeat the blue copper(II) sulfate until it has turned white. Move the flame along the length of the test tube from time to time (avoiding the clamp) to prevent water condensing on the cooler regions and then running down … Web(iv) Copper powder (v) Ferrous sulphate crystals (vi) Quicklime Identify the type of chemical reaction taking place when: (a) Barium chloride solution is mixed with copper sulphate solution and a white precipitate is observed. (b) On heating copper powder in air in a china dish, the surface of copper powder turns black. picture of flower growing

On heating green coloured ferrous sulphate crystals, a reddish …

WebSep 16, 2016 · 1. On heating the copper sulphate crystals, the colour changes from blue to white. 2. There are water droplets on the walls of the boiling tube. 3. On adding 2-3 … WebThis water is driven off when blue hydrated copper sulfate is heated, leaving white anhydrous. copper sulfate. This reaction is reversible: hydrated copper sulfate ⇌ … WebWhen heat was added to the copper (II) sulfate pentahydrate it began to remove water from the substance. 2. As heat is being added, the substance that began as a blue crystal powder form becomes white. 3. Copper sulphate indicates both a physical and chemical change because the color changed from blue to white after heating and because it is ... picture of flower fields near mountains