3. NB! Use the anhydrous copper sulphate immediately. 4. With the assistance of a spatula or glass rod place/pour a little of the anhydrous copper sulphate in each of the four test tubes. 5. Use a pipette to add a few drops of water to the first test tube Note the change observed __ 6. Repeat this procedure by adding a few drops of paraffin to the anhydrous copper(II)sulphate in the second test tube, cooking oil in the third test tube and vinegar to the fourth test tube Use a clean pipette each time! 7. Record the colour in each case in the table below. Name of liquid Copper sulfate colour Cobalt chloride colour (4) Water Paraffin square square Cooking oil square square square square Vinegar square square 8. Using the same pipettes, place a drop of water, paraffin, cooking oil and vinegar on a piece of cobalt chloride paper Space the drops carefully so that they do not run into each cobalt chloride paper test liquid 9. Note the colour of the cobalt paper each time and record your colours in the table above. 10. From this experiment what can you deduce about the test for water? (2) __