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Balls Bouncing Investigation I am going to investigate electrolysis. Background Most inorganic and some organic chemical compounds, when in a molten state or when dissolved in water or other liquids, become ionized. This means that their molecules become separated into positively and negatively charged components, which have the property of conducting an electric current. If a pair of electrodes is placed in a solution of an electrolyte and a source of direct current is connected between them, the positive ions in the solution move towards the negative electrode and the negative ions towards the positive. When the ions come in to contact with the electrodes, the ions may gain or lose electrons and be transformed into neutral atoms or molecules. The action of a current on an electrolyte can be understood from a simple example. If the salt copper sulphate is dissolved in water, it dissociates into positive copper ions and negative sulphate ions....

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