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1 A) is a strong acid. B) is a strong reducing agent. C) is a strong oxidizing agent. D) is neither an oxidant nor a reductant. E) is found in molecules such as CHCl3 . 2 A) argon B) bromine C) chlorine D) xenon E) oxygen 3 A) Its ionization energy is lower than expected. B) It reacts with organic halides to form molecular compounds. C) It has an unusually high density. D) Its salts are much more soluble in water than those of the other alkali metals. E) It has an unusually low melting point. 4 A) the water is oxidized. B) magnesium is reduced. C) oxygen and MgO are produced. D) magnesium is oxidized and water is reduced. E) the resultant solution will be acidic. 5 °
C and a pressure of 1 atmosphere, what changes in conditions are necessary to move into the region of the carbon phase diagram where diamond becomes the stable phase?A) temperature must be raised B) temperature and pressure must both be raised C) temperature must be lowered, pressure must be raised D) pressure must be raised E) temperature must be raised, pressure must be lowered 6 A) Al B) B C) C D) Si E) H 7 3 PO3 and HCl, are formed when _______ reacts with ______.A) PCl5 (l ), H2 O(l ) B) PCl3 (l ), H3 PO4 (aq ) C) PCl3 (l ), H2 O(l ) D) PCl5 (l ), H3 PO4 (aq ) E) P4 (s ), HClO4 (l ) 8 A) N2 O4 B) N2 O C) N2 O3 D) NO2 E) NO 9 4 O10 and H2 O.A) hydrogen gas, oxygen gas and phosphorus B) phosphoric acid C) phosphorous acid D) hydrogen peroxide and phosphane E) oxygen gas and phosphane 10 A) O- B) O2 2- C) O2- D) O3- E) O2 - 11 A) It reflects ultraviolet light away from the earth's surface. B) It reacts with oxygen molecules to form oxygen atoms. C) It is good for your health. D) It is useful because it destroys chlorofluorocarbons. E) It dissociates when it absorbs ultraviolet light. 12 A) Cl2 B) NaOH C) H2 O2 D) NaClO3 E) NaClO 13 A) HXO4 B) HXO3 C) HXO2 D) HXO E) HX 14 not occur?A) Cl2 + 2NaBr(aq ) → Br2 + 2NaCl(aq ) B) Cl2 + 2KI(aq ) → I2 + 2KCl(aq ) C) Br2 + 2NaI(aq ) → I2 + 2NaBr(aq ) D) I2 + 2KCl(aq ) → Cl2 + 2KI(aq ) E) All of these displacement reactions would be expected to occur. 15 A) fluorine B) bromine C) chlorine D) iodine E) None, since xenon is inert toward reaction with all halogens.
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