LIEN KET HOAHOC
3.39.Cho cdc chd't vd nhidt đ ndng chay cfta chun g:
Chat Cdng thftc phan tft Nhiet do ndng chay (°C) Nudc H2O 0 Mudi dn NaCl 801 Bdng phidn CioHe 80 Butan C4H10 -138
Ạ phdn tft, ion, phdn tft va phdn tft. B. ion, ion, phdn tft va phdn tft. C. phdn tft, ion, nguydn tft vd phdn tft. D. phdn tft, ion, ion va phdn tft. Hay chgn đp dn dung.
Bai 21
Hieu DO AM DIEN VA LIEN KET HOA HOC
3.40. So sdnh lidn kdt cdng hod tri khdng cue vdi lidn kdt cdng hod tri cd cue va lidn kdt cho - nhdn.
3.41. Lien kdt trong phdn tft LiF la lidn kdt
Ạ ion. B. cdng hod tri khdng phdn cuẹ C. cdng hod tri phdn cuẹ D. cho - nhdn.
Hay chgn dap an dung.
3.42. Lien kdt trong phdn tft HBr la lien kdt
Ạ cdng hoa tri khdng phdn cuẹ B. cdng hod tri phdn cuẹ C. cho - nhan. D. ion.
Hay chgn đp dn dung.
3.43. Sft dung gid tri đ dm dien cfta cac nguyen td cho trong bang tudn hoan cdc nguydn td, xac dinh kilu lien kdt trong phdn tft cac chd't : N2, AgCl, HBr, NH3, H2O2.
3.44. Sft dung gid tri đ dm dien cua cac nguyen td cho trong bang tudn hoan cdc nguydn td, xac dinh kilu lidn kdt trong cdc ion : CIO , HS , HCO3. 3.45. Sdp xdp cdc phdn tft theo chiiu tang đn đ phdn cue cfta lien kdt trong
phdn tft cdc chd't sau (sft dung gid tri đ dm didn trong bang tudn hoan): NH3 ; H2S ; H2O ; H2Te ; CsCl; CaS ; BaF2.
Bai 22
HOA TR! VA SO OXI HOA
3.46. Hay phdn bidt khdi niem sd oxi hod va hod tri cfta nguydn td trong hop chd't hod hgc.
3.47. Didn hod tri cfta cac nguyen td O, S (thudc nhdm VIA) trong cdc hgp chdt vdi cdc nguydn td nhdm IA diu Id
Ạ 2 - . B.2+. C. 6+. D. 4+. Hay chgn dap an dung.
3.48. Hay giai thfch dien hod tri bdng 2 - cfta oxi va luu huynh trdng cdc hgp chd't vdi natri vd vidt cdng thftc cd'u tao cfta phdn tft.
3.49. Hay cho bidt sd oxi hod va cdng hod tri cfta cac nguydn td Si, P, S, Q trong cdc oxit cao nhd't va trong hgp chd't khf vdi hidrọ
3.50. Tai sao mdt nguydn td cd thi cd mdt sd gid tri sd oxi hod ? Giai thfch bdng cac gia tri sd oxi hod cua S.
3.51. Nguyen tft cfta nguyen td photpho cd Z = 15. Dua vao cd'u hinh electron nguyen tft ; hay giai thfch cdc sd oxi hod cua photpho ?
3.52. Cho cac nguyen td : Sn, Si, S, Sb, Sc, Sẹ Hay sft dung bang tudn hoan di
xac dinh sd oxi hod cao nhd't va cho bidt nhiing nguydn td nao cd cung sd oxi hod cao nhdt.
3.53. Cho cdc nguyen td : Na, N, P, S, F, Si, As, Cl. Sft dung bang tudn hoan d^ xdc dinh cdc nguyen td cd cung sd oxi hod trong hgp chdt vdi hidrọ 3.54. Sd oxi hod cua nguydn td N trong HNO3 bdng
Ạ+3. B.+4. C.+5. D.+6. Hay chgn đp dn dung.
3.55. Sd oxi hod cua nguyen td S trong Na2S03 bdng
Ạ +3. B. +4. C. +5. D. +6. Hay chgn dap an dung.
LIEN KET KIM LOAI
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