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自然科學 大學

大學普化 方智化學第六題

ow Na k 7 CI o se Br Chapter 2 化學鍵結 AH -C=CH 升二技插大 3. Brigma The bond between the carbon atoms in acetylene (HCCH) consists of ) (A)6 pi electrons (B)4 pi and 2 sigma electrons (C)6 sigma electrons (D)2 pi and 4 sigma electrons (E)3 pi and 3 sigma B) B 7.(BCDE) electrons. 【84 成大化學) 14.(B) 20.(C) 4. E ) (A)NO; [83 中興A] Which of the following has a triple bond? (B)O2 (C)C12 (D)CO; (E)CN-. Which one of the following element pairs has the lowest electronegativity (B) 27.(D) 34. (C) C) 41.(CD) 1 G difference and thereby is the least polan? Få 10 323.49 B) (84 5% *ILI) -) 48. (A) 6. NET 2 > 2 D) 58. (D) 62. (B) 69. NO+ D Obind (219) O 发 (A)SeF (B)Seci (QKBr (D/NaCl (E)KAT. 11 The compound Sio does not exist as a discrete molecule while CO2 does. This can be explained because ly 2 ep 3 15 aly zp (A)the Si–O bond is unstable (B)The Lewis structure of SiO has an even number of electrons (C)The SiO2 is a solid while CO, is a gas (D)the 3p orbital of the Si has little overlap with the 2p of the 0 (E)none of the these. V MOJT 515 1 - 4 40 (成大】 Yi (4 0 atom) (86 58*A] 7. In order to explain the valence observed for many of the elements 0 -Si-O in terms of electron configurations, it is often useful to look at electronis staies slightly different from the ground state in comparing 0-41-0 the ground state of boron with the state more useful to describe 0 bonding, the number of unpaired electrons goes from (A)1 to 2 (B)1 to 3 (C)3 to 4 (D)3 to 5 (E)none of the above. (集 (80 清大B) Which of the following compounds should not exist? ( (, 【85 成大A】 alf 566-32 Cle 32-8-24 2-89 cild 14 1 he atoms 83 中興A) mm bove. B 29 p. 1 1 be a ) \CHE > ? (A)Na,P (B)(NH4),PO, CIPO. DPH xH)POCI,, Maspal sput 中興A] Pa zorgt O 15412 = 1) O-P- 5 5+12= 1) 10-4 - 13 13-12=1 -- cl-P-0

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英文 高中

第10題的ABD選項分別不太懂怎麼分辨跟選擇 高一英文 謝謝(◍•ᴗ•◍)💛💛💛

Lesson 5 } the oxygen flowing through it. composted. They'll 9. with someone who does. Should y could might / / ? your : 註:compost 堆肥 4. experts, a good trick is to compost as much brown material (dead leaves, wood, etc.) as green material (food, grass, etc.). If you follow this rule, you S. get high-quality soil. Also, if your pile is very big, you'll need to mix it from time to time 6. 7. _, remember that meat and dairy products can't be 8. your pile smelly and will attract animals. than you think, you will have dark, rich soil that's great for plants. Spread it in or add it to your potted plants. If you don't have any, you 10. share it m Composting is a practice that can really improve our environment. You should definitely consider giving it a try. (a) sooner than you think 9 ☆ (10) You could share it with someone who A 1. (A) who (B) whom (C) whose (D) he does (B) between (C) above (D) next to (B) much (C) that (D) a lot (0) 4. (A) Except for (B) Rather than (C) As to (D) According to ( (B) had (C) don't (D) are going to (C) 6.(A) keep (B) keeping (C) to keep (D) kept 7. (A) Finally A (B) Suddenly (C) Fortunately (D) Miraculously cm 8.(A) make (B) cause (C) have (D) allow (B) 9.(A) harder (B) sooner (C) less (D) worse (D) 10.(A) should (B) could (C) would (D) might 1092 (37 may see Tat) bntv (0) 2.(A) from (C) 3.(A) such CD) 5. (A) did ( 4 ) (B) Leer .

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