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The molecular formula of TCDD is C12H4O2Cl4. Chlorine exists as two isotopes 35Cl (75%) and 37Cl (25%). How many molecular ion peaks are there? What is the mass of the most abundant one?
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Describe a simple way to distinguish between aqueous solutions of potassium nitrate (KNO3) and potassium sulfate (K2SO4) using one test tube reaction
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