17 Which of the following is a pure element А B С D Al Iron acide tron Sodium iodide 18 om is equal to A 10 B. 10 C 10tm

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17 Which of the following is a pure element А B С D Al Iron acide tron Sodium iodide 18 om is equal to A 10 B. 10 C 10tm D 10 19. What is the molarity of a solution made by dissolving 50.0 g of sugar (Callum in water to make 0.750 .solution? Molar Mass of Calon-30'mol А. B С D 0.0159 M 0.150 M 0.195 M 1.95 M 20, What volume (ml) of 20 M sulfuric acid stock solution is required to make 200 ml. of a I M sulfuric acid solution? А B С D 0.1 ml I ml 10 ml 100 ml 21 A B С. D. Which of the following statements is correct? Sucrose is an ionie salt Sodium chloride (NaCl) is a strong electrolyte Ammonia (NH) is a strong base Nitric acid (HCI) is a weak acid