chu kỳ 2 nhóm iv a b chu kỳ 2 nhóm v a

nhung bai tap hay

Ngày tải lên : 20/09/2015, 06:03

... A 1s22s22p2 B 1s22s22p63s2 C 1s22s22p4 D 1s22s22p5 E Tất sai Câu 43: Ion X2+ có cấu hình electron: 1s22s22p6 Hãy cho biết X chu kỳ mấy, nhóm mấy: A Chu kỳ 2, nhóm IIA B Chu kỳ 2, nhóm VIA C Chu ... nh sau: X1: 1s22s22p63s2 ; X2: 1s22s22p63s23p64s1 ; X3: 1s22s22p63s23p64s2 X4: 1s22s22p63s23p5 ; X5: 1s22s22p63s23p63d64s2 ; X6: 1s22s22p63s23p1 Các nguyên tố thuộc chu kỳ A X1, X4, X6 B X2, X3, ... = Ag3PO4 SO 42- dd BaCl2 Ba2+ + SO 42- = BaSO4 SO 32- dd HCl 2H+ + SO 32- = SO2 + H2O SO2 + I2 + 2H2O = 2HI + H2SO4 2CO3 dd HCl CO 32- + 2H+ = CO2 + H2O CO2+Ca(OH )2 = CaCO3+2H2O 2S dd Pb(NO3 )2 Pb2...

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Tài liệu Tài liệu đào tạo môi trường (Các khoá A, B, C và D) doc

Ngày tải lên : 09/12/2013, 21:15

... sông Mê Công B i - Những nguyên tắc phát triển b n v ng B i - Hớng tới phát triển b n v ng B i - Kinh tế môi trờng B i - Đập phát triển b n v ng B i - Tầm quan trọng rừng lu v c Mê Công B i - Chơng ... Danh mục tài liệu Khoá học A: Phát triển b n v ng Nhận thức Môi trờng B i - Các đặc điểm đ a lý, dân c sinh thái lu v c sông Mê Công B i - Những hoạt động thực tiễn không b n v ng lu v c sông ... triển b n v ng Uỷ hội sông Mê Công Khoá học B: Giới thiệu Khoa học Môi trờng lu v c sông Mê Công B i - Định ngh a môi trờng lu v c sông Mê Công B i - Giới thiệu khái niệm khoa học hệ sinh thái B i...

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22. There is only a chair ............... leg was broken. a. whose b. which c. when d. that a 23. potx

Ngày tải lên : 18/06/2014, 17:20

... on a was wearing nothing b was cracking a book c was doing nothing d was covering nothing a 22 Nowadays, many people yoga to relax a give up b take up c take on d made b 23 We have to live ... air in large amounts a becomes b particular c however d are dispersed b Grammar and Vocabulary 11 The singer was supported by his a assassin b conservative c patron d radical c 12 He decided ... the English alphabet a between b among c for d with a 39 After lunch, Mary cleared the table a cleaned the table b took the table away c removed the tableware from the table d all are correct...

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30. This .................. for his behavior. a. amounts b. accounts c. arrives d. approaches b pot

Ngày tải lên : 18/06/2014, 17:20

... thread d breath b a polish b abolish c police d policy c a mate b water c stake d place b a though b cough c although d soul b a teacher b break c meal d peak b a blank b stand c enhance ... Pronunciation a taught b thought c bought d draught d a pain b fountain c complain d explain b a large b stage c league d lounge c a cape b captain c capsule d capital a a boat b roar c roast ... Pronunciation a teacher b headache c chair d cheat b a none b stone c bone d alone a a because b clause c cause d aunt d a hungry b huge c rush d bus b a peace b reaper c reader d realize d a...

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a. annoying b. arguing c. discussing d. shouting b 22. A good clock always keeps ...………. ppt

Ngày tải lên : 18/06/2014, 17:20

... one? a Which b What c How d Who a 33 I have to leave before seven and so a leave you b you have c you d you d 34 He has the to become a professional football player a ability b able c enable ... a like b although c until d as if d 14 She was carrying a bag a black small plastic b small and black plastic c small black plastic d plastic small black c 15 goods were sent to the fair ... going to buy ” a a bread b some bread c a loaf of bread d both b and c are correct d 50 "What time did you arrive at the match?" "A little than usual." a more b time c less d later d Test...

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210. The change from day to night results the rotation of the Earth. a. change b. to c. results d. potx

Ngày tải lên : 18/06/2014, 17:20

... d 25 1 The young girl dreamed a dream that she was being carried away by monsters a dreamed b a dream c was being carried d by > b 25 2 It had been a long winter, but at last it was nearly across ... we can see the scores of the football match a Now that b arrived c can see d of > b 336 We believe that she already feels very badly about her mistake a already feels b badly c about d mistake ... across a had been b but c nearly d across > d 25 3 We can think of no reason about such strange behavior a think b no c about d behavior > c 25 4 Alan kept to try, although he didn’t have much chance...

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Đề kiểm tra tiếng anh10: test 01 ( duration: 15 minutes) I. Choose the one (A, B, C or D) ppt

Ngày tải lên : 27/07/2014, 19:21

... When British people go abroad, it takes them several days to get used to………… A driving drive B driven C D drove I’m having lovely time in Brighton I wish you……………….here with me A had been B were ... Barbara Taylor Bradford’s novel, was a poor lonely girl who became the … (21 ) owner of an international chain of stores Like the woman she writes about, Ms Bradford is beautiful and ambitious ... richness D wealthy 22 A journal B report C journalist D B decided C decisive D decision newspaperman 23 A decide 24 A luck unlucky B lucky C unluck D 25 A happy unhappily B happiness C happily D...

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Câu 21. Cho các chất : CH2ClCOOH (a); CH3COOH (b); C6H5OH(c), CO2(d); H2SO4(e). pot

Ngày tải lên : 01/08/2014, 22:21

... lượng cacbua hỗn hợp ban đầu là: A 40%; 60% B 22 ,86%; 77,14% C 47,06%; 52, 94% D 66,67%; 33,33% Câu 35 Đốt cháy ete A đơn chức, thu CO2 H2O v i tỉ lệ : A tạo từ A Propanol (1) B Butanol etanol (2) ... suất cao, nhiệt độ không cao h a lỏng để tách NH3 khỏi hỗn hợp Câu 38 Trong số chất: NaCl, Ca(OH )2, Na2CO3, HCl, chất làm mềm nước cứng tạm thời A Na2CO3 HCl B NaCl Na2CO3 C NaCl HCl D Na2CO3 Ca(OH )2 ... thu butanol -2, ta hiđrat hoá hiđrocacbon có công thức cấu tạo: A CH2 = C(CH3 )2 (3) B Cả (1) (2) C CH3 – CH = CH – CH3 (2) D CH2 = CH – CH2 – CH3 (1) Câu 31 Cho chất: CH3COOC2H5 (a) ; CH3COOH (b) ,...

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Mark the letter a, b, c, or d on your answer sheet to indicate the word that differs from the rest in the position of the main stress in each of the following questions

Ngày tải lên : 08/10/2014, 16:46

... 16 17 18 19 20 B Adobe houses C Tepees C B B C C A D B C C D D D A D C C B A D 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 C B D C B A D D D A C B A B B C B B A C 41 42 43 44 45 ... 50 51 52 53 54 55 56 57 58 59 60 12 C A B A B A D B B A A B A A B A B D C B D Igloos 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 D C A D D B A A B C D D B B C A A B D A Mark the ... 47: I can’t go with you today; I have…………… things to A a great deal B many a great C great many D a great many Question 48: It’s high time we…………… A to leave B were leaving C leave D had left...

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Mark the letter a b c or d on your answer sheet to indicate the word that differs from the rest in the position of the main stress in each of the following questions

Ngày tải lên : 08/10/2014, 16:46

... because the weather was so bad C The bad weather was the reason that made our excursion to London have been fallen over D Our plans for an excursion have fallen away because the weather was bad ... is very for the office as I can get there in five minutes A comfortable B near C available D convenient Question 30 : The boy has chosen to MBA programme in Australia A the B Þ C an ... creative that we all can rely on her for original ideas A Being creative, we all can rely on Jenny for original ideas B Creative as Jenny is, we all can rely on her for original ideas C So creative...

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Phonetics Choose one word whose underlined part is pronounced differently from the others. Identify your answer by circling the corresponding letter A, B, C, or D:

Ngày tải lên : 30/01/2015, 21:22

... 21 3 A wheat 21 4 A good 21 5 A affected 21 6 A been 21 7 A farmer 21 8 A mend 21 9 A build 22 0 A country 22 1 A nose 22 2 A ghost 22 3 A supplied 22 4 A animals 22 5 A bodies 22 6 A stop 22 7 A machine 22 8 A ... rakes A briefcases A theme A hot A that B boats B oranges B there B got B make 86 87 88 89 90 A fat A name A bear A last A page B hate B fame B clear B fast B game 91 92 93 94 95 A find A bush A ... 199 A soldier 20 0 A biology 20 1 A inventions 20 2 A carry 20 3 A average 20 4 A worked 20 5 A portage 20 6 A throw 20 7 A check 20 8 A result 20 9 A hear 21 0 A experiment 21 1 A favourite 21 2 A radio 21 3...

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Tài liệu Công Nghệ Thi Công Dầm Hộp Liên Tục B.T.C.T.D.Ư.L. Bằng Phương Pháp Đúc Hẫng ppt

Ngày tải lên : 20/01/2014, 23:20

... để 20 phút phải kiểm tra lại độ linh động tr-ớc b m Trình tự b m v a: Kiểm tra ống thép b cáp căng B m v a v o ống: V a sau trộn đạt yêu cầu đ-ợc b m v o ống thông qua ống b m Ph a tr-ớc v a ... cách dùng tay nắm v a lòng b n tay sau mở tay nắm v a không b v n-ớc chảy đ-ợc Cạnh miệng khe hở để nhét v a nên đặt tôn làm máng Dùng xô nhỏ v n chuyển v a đổ v o máng, sau dùng tre tiết diện ... đúc 1 /2 giàn sau xe đúc 660 /2 660 /2 275 25 0 20 0 150 300 1 /2 giàn tr-ớc xe đúc Thanh bar 38 1370 /2 Thanh bar 38 700 Palăng xích 15T 45 610 Palăng xích 15T 45 15 công nghệ thi công dầm hộp btct...

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b. Was c. Had d. Have b 22. "Did Susan use to be your next-door neighbor?" "Yes, but I potx

Ngày tải lên : 18/06/2014, 17:20

... clergy c bench d lend b a football b thanks c stall d wall b a cattle b castle c kettle d subtle b a standard b farmer c start d farther a a maize b failure c airport d complain c a clip b triple ... please” a broad b much c greatly d wide d 38 Opening a conversation and bringing it to an end are essential parts of our …… a day language b everyday language c language everyday d language day ... the man ………… a death b was died c was death d was dead d Test 49 Pronunciation a rose b cover c nose d over > b a stage b manage c village d baggage > a a sea b sand c sun d sure > d a supply...

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c. when d. about --> b 120. Winners were greatly honored by having olive wreaths placed on their ppt

Ngày tải lên : 18/06/2014, 17:20

... a whomever b has c to sign d it a 26 3 I have never had a most amusing song book than this one before a never b most c amusing d before b 26 4 John has visited Hawaii and Alaska, and he assures ... card a can’t withdraw b any c don’t show d identity c 25 6 She has so many money that she can buy whatever she wants to a has b so many c can buy d whatever b 25 7 It is such a boring book that ... you have chosen for me a very b that c have chosen d for > d 197 I am afraid that I am unable accepting the offer a afraid b that c unable d accepting > d 198 I shall be take up a similar position...

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Đề tài : CÔNG NGHỆ THI CÔNG DẦM HỘP LIÊN TỤC B.T.C.T.D.Ư.L. BẰNG PHƯƠNG PHÁP ĐÚC HẪNG CÂN BẰNG (CẦU CẨM LỆ) pps

Ngày tải lên : 29/06/2014, 18:20

... thay i thnh phn ca va bm vo ú Sau v sinh xong, b mt b tụng ti õy c gi m v ng 24 h trc va vo ú Va c trn bng mỏy v c bm vo v trớ theo trỡnh t t Dựng cỏc si cỏp cng cao di khong 2m chc vo b mt va ... nc sch vo tng ng ghen sau ú thi ht nc bng mỏy bm hi ộp Cụng vic ny cũn cú ý ngha lm trn ng v ch lm trc bm va Bm va vo ng: Va sau trn t yờu cu c bm vo ng thụng qua mt ng bm Ph a trc va bm luụn ... ph a b n ca ng, quan sỏt bng mt nu thy va cú cht lng (mu sc, linh ng) tng ng vi va trn thỡ ngng bm v khoỏ van u ny li Nu ng cú b trớ ng thm va li tip tc bm n thy va chy y ng thm va thỡ khoỏ van...

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TiÕt 11: Bµi 4 QuyÒn b×nh ®¼ng cña c«ng d©n trong mét sè lÜnh vùc cña ®êi sèng x• héi ( tiÕt 3)

Ngày tải lên : 14/07/2014, 00:00

... hiểu b nh ngh a cá nhân, tổ chức tham gia v o quan hệ kinh tế, từ đẳng kinh doanh việc l a chọn ngành, nghề, đ a điểm - Cách thực hiện: kinh doanh, l a chọn hình thức tổ - GV: Hỏi: Em kinh doanh ... đẳng kinh doanh là: B t tham gia v o trình kinh doanh Hiểu nh có không? V sao? Sau tốt nghiệp THPT, em có ý định thành lập doanh nghiệp t nhân em có quyền thực ý định không? V sao? IV Hớng dẫn ... kinh doanh, đến việc thực Hỏi: theo em hiểu b nh đẳng quyền ngh a v trình sản kinh doanh nh nào? Cho v dụ xuất kinh doanh b nh đẳng theo minh h a? quy định pháp luật - GV: Kinh doanh việc thực...

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