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1 A) NH3 B) BH3 C) CaH2 D) HCl E) CHCl3 2 A) BaO B) Na2 O C) P4 O10 D) PbO2 E) SiO2 3 A) Li > Cs > Rb > K > Na B) Cs > Rb > K > Na > Li C) Li > Na > K > Rb > Cs D) Li > K > Na > Cs > Rb E) None of the above orders is correct. 4 A) barium hydroxide and water B) barium carbide and oxygen gas C) barium metal, oxygen gas, and carbon monoxide D) barium metal and carbon monoxide E) barium oxide and carbon dioxide 5 A) C B) Si C) Sb D) Pb E) None of them, since they always occur in the +4 oxidation state. 6 not a use for carbon dioxide?A) to provide the "bite" in soft drinks B) in fire extinguishers C) as a refrigerant D) in the Frasch process E) in the manufacture of soda ash 7 A) N2 O4 B) N2 O C) N2 O3 D) NO2 E) NO 8 3 , PCl5 , and PCl6 - are, respectively,A) trigonal planar, trigonal bipyramidal and octahedral. B) pyramidal, square pyramidal, and octahedral. C) trigonal planar, trigonal bipyramidal and octahedral. D) trigonal pyramidal, square pyramidal and octahedral. E) none of the above. 9 A) N2 B) NH4 + C) NO3 - D) NO E) N2 O 10 A) diatomic S2 molecules B) a diamond like covalent network solid C) S8 molecules with ring structure D) S4 molecules in a tetrahedral arrangement E) a planar covalent network solid, like graphite 11 A) S2 - B) S2 2- C) S- D) S2- E) none of the above. 12 A) Xe B) Br C) I D) Se E) P 13 A) sulfuric acid B) perchloric acid C) nitric acid D) hydrochloric acid E) hydrofluoric acid 14 A) strong acids B) strong bases C) strong oxidizing agents D) strong reducing agents E) not very reactive 15 A) higher, higher B) higher, lower C) lower, higher D) lower, lower E) Since they are both noble gases, their densities and boiling points will be very similar.
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