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Chapter 7: Chemical Bonding and Molecular Geometry

Q14E

Page 391

Explain the difference between a nonpolar covalent bond, a polar covalent bond, and an ionic bond.

Q15E

Page 391

From its position in the periodic table, determine which atom in each pair is more electronegative: (a)BrorCl(b)NorO(c)SorO(d)PorS(e)SiorN(f)BaorP(g)NorK.

Q16E

Page 391

From its position in the periodic table, determine which atom in each pair is more electronegative: (a)NorP(b)NorGe(c)SorF(d)ClorS(e)HorC(f)SeorP(g)CorSi.

Q17E

Page 391

From their positions in the periodic table, arrange the atoms in each of the following series in order of increasing electronegativity: (a)C,F,H,N,O(b)Br,Cl,F,H,I(c)F,H,O,P,S(d)Al,H,Na,O,P(e)Ba,H,N,O,As.

Q18E

Page 392

From their positions in the periodic table, arrange the atoms in each of the following series in order of increasing electronegativity: (a)As,H,N,P,Sb(b)Cl,H,P,S,Si(c)Br,Cl,Ge,H,Sr(d)Ca,H,K,N,Si(e)Cl,Cs,Ge,H,Sr.

Q19PE

Page 392

Which atoms can bond to sulfur so as to produce a positive partial charge on the sulfur atom?

Q1E

Page 389

Does a cation gain protons to form a positive charge or does it lose electrons?

Q20E

Page 392

Which is the most polar bond? (a) CC (b) CH (c) NH (d) OH (e) SeH .

Q21 E

Page 392

Identify the more polar bond in each of the following pairs of bonds: (a) HForHCl (b) NOorCO (c) SHorOH (d) PClorHCl (e) CHorNH (f) SOorPO (g) CNorNN .

Q22 E

Page 392

Which of the following molecules or ions contain polar bonds? (a) S8 (b) S8 (c) O22 (d) NO3 (e) CO2 (f) H2S (g) BH4 .

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