請問有人可以教我嘛我我不太會

1.使用 和 實際發生的反應。 的化學式、 和 等符號,來 2.必須遵守 定律,亦即每一種原子的總數在方程式的兩側必須 3.已內的化學反應中,左右兩邊的 總數必相等,但均衡係數和不一定 Go!讓我們練習去吧! 1. 铁在氧氣中燃燒生成氧化鎂:2 Mg + O2 2 Mgo 02 C+ CO2 2. 碳在空氣中燒燃生成二氧化碳: Cot 3. 一氧化碳與氧反應: O2 CO2 NH3 + CaCl2+ NH4Cl+ 4. Ca(OH)2 -> H N2 + NH2 Cut

請問這題怎麼算？

【註:出於业不知是有埋係數,业不能见刘 立刻練習 1 Coto/ 1. 若12-(fan + aar-1=0,有一根為3+2^2,則sing cos = 5+2= tano + coto 答: 【彰女、嘉中、嘉女、鳳中、道日” 201 1 . 3 V 6

請問這一題我是哪裡算錯了呢

正的 自66 cos 200" (II # CSC(600°-360°) F 一 目的 -65240° 自的 tan300°EIL 下 a=2 (041400°-360) b=4 =cot 40° EI 2-4 =-) 正的 已知 cos9= 且sing<0,試求cot + csc之值。 25 下 A:-2 7. 4. 解 Cosoco, sino co GI - I <更、更 EIK 24 sta A Coto+ (SCO 少 ) state) 3284 24 B63 tim A:

求詳細過程，正確答案為1/（2π）

0 cot (70) sin e 9! lim 00 2 sec 10. - 2

來不及了，求求了

10 as on 3 Stoledo 精熟學習能力評量 克漏字選擇:12分(每題2分) TOWO 1. Annie : Wow! What a cool scooter ! Is that David : Yes, it's mine. My grandma 2. month. Annie : I see. By the bro David : It was time. Annie : It rained a lot here yesterday. 4. David : 5. hot and sunny. Here is a gift for you. 300 to Annie : 6. ro 921 793 David ? as my birthday gift last way, how was your trip to Pingtung yesterday ? . I visited many interesting places. I had a good wode. the weather in Pingtung ? JE in good so Thank you. (D) heegbasta ( ) 1. (A) you (B) yours abritid (C) hiso ( ) 2. (A) gave me to it risw 90 ((B) gave it me to tow 3 (A) (C) bought it for me di onu (CI(D) bought me it sw 601 9m (0) ( ) 3. (A) fun (B) kind (C) mad omul (D) heavy MSI ( ) 4. (A) How's sw C (B) What's w © (C) How was (a) (D) What was A) ( ) 5. (A) They were (B) It was (1): (C) This was VTTO2: a (D) That was I WSM LolbH A. ( ) 6. (A) I don't think so. mod 2's (a) (B) It's very kind of you. on W (A) (C) How come ? dt overi noy (Q (D) Whose gift is it ? ai ainT (0) 二、閱讀素養題:6分(每題2分) blog rioy at AS White Town -5°C -3°C . Blue Town 6°C ~ 11°C Weather in Duck Island Today adli yotW (a) 90 mio nov hib vow (o) di tuods Elnins AS (@) : 1912 l ti guod tej ora e'st al: Symantel (2) Si, toxls 90r1W (A) Sligo yellow o townov bid (9 mm 10°C – 15C I 1991 A. Sorodt ob nosan sdw (A) mis Ud./ Orange Town 170 ~ 22Calo • Yellow Town Green Town 13°C ~ 19°C Black Town 15 C - 20°C COWOH (E . Red Town 16°C - 24°C (翰)英語) ~ 12 ~

來不及了呃啊啊

10 as on 3 Stoledo 精熟學習能力評量 克漏字選擇:12分(每題2分) TOWO 1. Annie : Wow! What a cool scooter ! Is that David : Yes, it's mine. My grandma 2. month. Annie : I see. By the bro David : It was time. Annie : It rained a lot here yesterday. 4. David : 5. hot and sunny. Here is a gift for you. 300 to Annie : 6. ro 921 793 David ? as my birthday gift last way, how was your trip to Pingtung yesterday ? . I visited many interesting places. I had a good wode. the weather in Pingtung ? JE in good so Thank you. (D) heegbasta ( ) 1. (A) you (B) yours abritid (C) hiso ( ) 2. (A) gave me to it risw 90 ((B) gave it me to tow 3 (A) (C) bought it for me di onu (CI(D) bought me it sw 601 9m (0) ( ) 3. (A) fun (B) kind (C) mad omul (D) heavy MSI ( ) 4. (A) How's sw C (B) What's w © (C) How was (a) (D) What was A) ( ) 5. (A) They were (B) It was (1): (C) This was VTTO2: a (D) That was I WSM LolbH A. ( ) 6. (A) I don't think so. mod 2's (a) (B) It's very kind of you. on W (A) (C) How come ? dt overi noy (Q (D) Whose gift is it ? ai ainT (0) 二、閱讀素養題:6分(每題2分) blog rioy at AS White Town -5°C -3°C . Blue Town 6°C ~ 11°C Weather in Duck Island Today adli yotW (a) 90 mio nov hib vow (o) di tuods Elnins AS (@) : 1912 l ti guod tej ora e'st al: Symantel (2) Si, toxls 90r1W (A) Sligo yellow o townov bid (9 mm 10°C – 15C I 1991 A. Sorodt ob nosan sdw (A) mis Ud./ Orange Town 170 ~ 22Calo • Yellow Town Green Town 13°C ~ 19°C Black Town 15 C - 20°C COWOH (E . Red Town 16°C - 24°C (翰)英語) ~ 12 ~

數學這題救命

OLTON POLX TOOL TOO 的應用 進階演練10 宇宙的某處有一顆恆星爆炸了,經過25 光年 後,爆炸的光線傳到了地球。已知1光年(光 前進1年所走的距離)約為94600 億公里,則 這顆恆星未爆炸前,距離地球大約是多少公 尺?(以科學記號表示) . OLX OLXS (A) BOIXA OIXSO) OTXEA OTXI CORSI 10 1/1 BE JTX 105 COTXENIXONA OXOOXEND

請問這題，化學平衡！

COTICAL) (COCL) : 1 ) SEE、 = 1.6 -50.43 . OH(aq) 反應量,利用近似值解題) (4 Kc=lo eclis to CIF CIFt Ez || | I 2.5 C C -X 子 -X E (2.3-1) (4x) (Ita) > 0 2.5 : [[IF] = 2.5x1014m ke 類題7 7= 25 x 某溫度下,Ag(aq) + 2NH-(aq) [Ag(NH)] (aq), K. = 2.5 × 10%,0.2 M 的 AgNO3(aq)和0.8 M的NH-(aq)以等體積混合後,[Ag]為多少M?(提示:K值極大(K> 101),表示進行正反不一 應的趨勢極高,此時可以先假定反應物完全轉變為生成物,再由逆反應依上述K值極小的方式 計算) ( 0-2 ::) -19 2.5 OH M OH ( 2 1 7 体 9.8 1-06 Agf+ 2NH2 = [4g (NH3)2]+ I 04 0.4 c - 0.1 -0.2 tool 0 22 1. ||

求解！！緊急！！ 謝謝♡(ӦｖӦ｡)

生活 科目成績不是 阿文 英文 札 記 構 數學S, 月 0913 他到 公民 倫高清品者 1名記訴家長簽2 八勿模仿分店每 理化 日 Unit 1 Lesson 1 Worksheet I - Dialogue Pre-listening Write down two ways people celebrate(296) their family members' or friends' birthdays. 1. 2. Post-listening After listening to the dialogue on p. 11-12, read it out loud with your partner(s). Find out the answers to the questions and underline them in the dialogue. 1. Where are Bella, Paul, Scott, and Ann? 2. Who is Bella? 3. Who is the young man in the dialogue on p. 11? 4. What is Paul's birthday gift? 5. Who is Ann? 6. Is Ann an English teacher? 7. Is Bella Ann's PE teacher? 8. Who is a PE teacher? 9. Is Scott happy to meet Ann? Activity Work in pairs and show your partner how you usually celebrate your family members' or friends' birthdays. Make two sentences to describe it and draw it. How do you usually celebrate your family members' or friends' birthdays? E.g. I write a birthday card. Drawing

想請問這題怎麼解，感恩

4 3 5'5 O EX14-9. 設3cos8+4sing=5,且0°<<90°,則sing = _cosd =__。答: