1 The apparatus below was used to make oxygen. The tube of manganese oxide was added to the hydrogen peroxide solution by releasing the cotton. Ex 20 40 60 80 100 cm3 cotton hydrogen peroxide tube containing manganese oxide (a) Complete the boxes to identify the pieces of apparatus. [2]

to make a supersaturated solution, make a saturated solution of sugar by adding 360 grams of sugar to 100 ml of water at 80 degrees celsius. when the water cools back down to 25 degrees, that 360 grams of sugar will still be dissolved even though the water should only dissolve 210 grams of sugar.