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Water (Experiments (To test for water (1 Put Cobalt Chloride paper to the…
Water (Experiments, Water Cycle, Water Treatment, There is a constant amount of water on earth. This is because water is being cycled and recycled. This process is described as the water cycle. , Water was first thought of as an element. Scientist Henry Cavendish proved this wrong by splitting water into it's two elements hydrogen and oxygen using a process called electrolysis. This involves electricity being sent through the water. A small volume of dilute sulfuric acid is added to the water to make it more conductive. A Hoffman Voltameter is used in this experiment. There is 2 hydrogen atoms to every 1 oxygen in water double the amount of oxygen is created in Hydrogen. 2H2O - 2H2 O2, Most liquids expand when heated and contract when cooled. Water actually expands when cooled. , Water clings to glass. As a result the surface of water in a narrow vessel is curved. This curved line of the water surface is called the meniscus, Desalination is when saltwater is heated and evaporated. The steam then rises, hits the glass ceiling in the building where it condenses into pure water.)