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D. III

D. -3

D. IV

A. 32


B. Cations are smaller than their atoms, anions are larger than their atoms

A. 20.0, 80.0


B. 39.1%


C. CaCl2×6H2O


A. 40.0 g


A. 537 g/mol


B. 10.7 g


B. CrO3


D. III

A. 2p → 3p

B. II and IV only

B. the lower electron-electron repulsion in nitrogen

D. 1s electron

C. III and V only

D. The ability of an atom to draw electron density towards itself

C. effective nuclear charge

C. decreases and electronegativity decreases

B. II

A. is probably smallest for beryllium

C. Mg, P, Cl, Ne

D. II

B. Mg<Na<Ba<Cs

D. IV

C. III

A. 2


C. 2pzbe+(1SHA-1SHB)

B. CsF

C. Ionic Bonding

B. SF2Cl4

C. I and III only

D. +2,-1


C. Angular, Trigonal Planar, Trigonal Pyramidal

A. IV

D. I and II only

A. Unit cell

B. the placement of layers of calcium atoms

D. molecular structures

D. IV


A. IV

A. MgO contains double charges ions, while LiF contains singly charged ions.

A. [Ionic, Molecular, Covalent network, Metallic]

A. [K, Br2]

D. +4


D. a.2.33 g cu.cm


A. V

A. IV

D. HNO3 and NO

A. 10.3


A. NaCl (aq)

C. 0.10 M NaCN (Ka for HCN=6.0×10-10)


C. II

B. III

B. III

B. Sodium Chloride

B. III

C. I, II and IV

B. Bromine

D. II only

B. red

B. NF5

C. Fe(NO3)3

C. III

C. OF4

A. I and II only

C. Si

B. SiO2

B. PCl5 disproportionate to PCl4+ and PCl6- in the solid state

C. If N2 is heated from 60K to 70K at 0.100 atm, it sublimes

B. -1


B. III

B. III


C. complex ion

D. I

B. III

A. Trigonal Pyramid

C. It is consistent only with square planar geometry

A. II and III only


A. III

A. IV

B. V(CO)6

A. Tc-99

A. Neither I nor II

A. IV


B. III


B. Uranium-238 does not undergo fission easily enough to be used as a fuel

A. II


D. IV


C. Alpha particle production is the only route by which unstable nuclei can spontaneously decay

D. I


A. III


D. The destruction of ozone gas in the stratosphere by gaseous nitrogen oxides

A. Nitric oxide

A. Y

B. II and III only

B. IV

A. Q and T only