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Acids, Bases and Salts - IGCSE STUDY BANK

www.igcse.at.ua www.igcse.at.ua Acids, Bases and Salts THE THEORY of ACIDS and ALKALIS and a few technical terms: o Acids are substances that form hydrogen ions (H+ (aq)) when dissolved in water eg hydrochloric acid HCl gives H+ (aq) and Cl-(aq) ions, sulphuric acid H 2 SO 4 gives 2H+ (aq) and SO