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KCl where, K= potassium Cl= chlorine The chemical compound potassium chloride (KCl) is a metal halide salt composed of potassium and chlorine. In its pure state it is odorless. It has a white or colorless vitreous crystal, with a crystal structure that cleaves easily in three directions.
DH = -84.9 kJ. The equation tells us that the decomposition of 2 moles of potassium chlorate to form 2 moles of potassium chloride will release 84.9 kJ of heat. However, we are producing 6.14 g rather than 2 moles, so we first convert to moles and then use the conversion â84.9 kJ per 2 moles KCl(s).