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自然科學 大學

只有氧是不規則的命名嗎? Tetroxide vs tetraoxide Pentoxide vs pentaoxide PCl5 後面Cl 就是 pentachloride

6 机 BLE 2.6 | Prefixes Used to Indicate Number im Chemical Names U選4 7)o7o- g- 7二 Numberindicated 1 7efrg- 2e77o- Agexog- 7epfg- Ocfg- 7o7g- 選和os和 eu |,, decg- INTERACTIVE EXAMPLE 2.8 SOLUTION JPHABnEB 呈_Atomsg, Miolecules, and Ins consider the names ot the s will no To see how these Tules apply, 沿 同 lent compounds formed by nitrfgg 時 as tematic Name 了 同 loxi Nitrous oX1ce de 。 imitrogen InonoX1 1 9 ii monoxide NI 時 4 NO Nitrogen N os Dinitrogen TioX1 同 Noo, Dinitrogen tetIOX1 Noo Dinitrogen pentoxi 2 avoid awkward pron that to hen the element beglns Wtt 7oO/ dinitrogen tetrdox ng examples fthe prefiX trogen tetroxide, tt their common names- esystematic names to Notice from the precedi often drop the final ? % 20 example, N204 1S called dinlt called carbon monoxide, 7 carbo Some compounds are always Te are water, ammonia, and hydrogen pe H2O2 are never used. n monoox1l ferred to by roxide- Th Naming Type 山 Binary Compounds 1. Name each of the following compounds: a. ,PCD DBGIG MS 09 2. From the following systematic nameS, Write the formula for ea a.。 Sulfur hexafluoride b. Sulfur trioxide c.。 Carbon dioxide 1 Formula Name a. PCl Phosphorus pentdehloride Be Phosphorus trichloride c. SO2 Sulfur dioxide 2. Name Formula a.。 Sulfur hexafluoride SFe b.。 Sulfur trioxide SO ce. Carbon dioxide CO

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Firse getto know the alphabetlealorder well the dictionary. Exarmple: In the three words一 bet, bed, and bee一the firsttwo letters ”b”and first, 真is thesecond,and _志isthethirdinorder Seeond, make good use of dictionaries You should know the rules ofadictionary” Here is an cxample: businessman 「brIznrs.mapn] n. aman who works in business 澀 @ 售 @ pusinessman 一 the spelling ofthe word (?@ brznis.maen) 一 how to say the word in English (@z 一 the part ofspeech; “n," Ineans “noum aman who works 記 business一 the meaning ofthe word 畔 alphabetical order 字母順序 part Of Speech 詞性_noun 名詞”meaning 意訂 39, Which is a good title of the Teading? (A) 友s /o Cse 7 Dicrozgz 所作 (58) 所pyy 克 20,g Goog Dic/o74g7 (C) 的閃名放浪讓g5 放太 0) 碼)5 ,SpegA gg放太 0. What are the words in the three (A) bet一bed一bee (B) bee一bed一bet (C) bee人bety>bed (D) bed>bee一bet , What can we know from thereading? 人AA)和most dictionaries, “Thursday”comes after “Wednesday 裔inorder? section 部分bebased on Most dietionaries follow the alphabetical order' You should be ableto know clearty which jettcr comes before or after another one. For example, “desk begins with ”d,"soitwil bein thesection after seeand before ve” Note: when the firsttwo letters oftwo different Words are the same, Just look at the third letterof both words. Then,youcan find them in e are the 5ame, so the order of the words in the dictionary is based onthe third letter. 去 isthe (B) jnhthereading, "them” means the first letterand second letter inaword. (人 Youean mow temeaning oftle Wordby ]o0king at “GODP”in adictionary. tspelling ofaword by looking 3t Wo insdicttonsry.

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