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Practice Exam 2 Solutions-Hale

Practice Exam 2 Solutions-Hale - Which of the following...

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Which of the following exists mainly as cations in compounds? A) P B) Ga C) As D) Si E) Ca All of the following form saline hydrides except A) barium. B) beryllium. C) lithium. D) magnesium. E) calcium. All of the following can act as Lewis acids except A) B 2 O 3 . B) SO 3 . C) Na 2 O. D) NO 2 . E) CO 2 . When saline hydrides dissolve in water they A) produce O 2 (g). B) reduce water and produce H 2 (g). C) Saline hydrides are insoluble in water. D) reduce water and produce O 3 . E) produce H 3 O + (aq). Which of the following is NOT true? A) In diamond, each carbon atom is sp 3 -hybridized and linked to its four neighbors, with all electrons in C-C s -bonds. B) C 60 is molecular and thus soluble in solvents like benzene. C) Silicon adopts the same structures and same types of elemental allotropes as for carbon. D) Graphite is an electrically conducting solid. E) Diamond is an excellent conductor of heat. What is the formula of baking soda? A) Na 2 CO 3 10H 2 O B) NaHCO 3 C) NaHSO 4 D) Na 2 SO 4 E) Na 2 CO 3 Which of the following is a basic oxide?
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