問3でAを与えるH、Bを与えるHの区別がよく分かりません。 回答よろしくお願いします🙇🏻‍♀️

ルカンと えます。 こから 口 しま ひず にあ 「入試攻略」 への必須問題2 天然ガスや石油の主要な成分であるアルカンは,一般に化学的に安定な 物質である。しかし, アルカンと塩素の混合気体に紫外光を照射すると速 やかに反応して,アルカンの水素原子が塩素原子に置換された化合物が得 られる。 問1 メタンと塩素の反応によって, メタンの一塩素置換生成物であるク ロロメタンが生成する反応を化学反応式で示せ。 プロパンを同様に反応させたところ, 2種類の一塩素置換生成物で あるAおよびBが得られた。 AとBを分離し, それぞれをさらに塩素と 問2 反応させると,Aからは3種類の二塩素置換生成物が得られ, Bからは 2種類の二塩素置換生成物が得られた。 AとBの構造式を書け。 また, Aから得られた3種類の二塩素置換生成物の構造式も書け。 問3 プロパンの8個の水素原子のうち, 置換されてAを与える水素原子 をH, 置換されてBを与える水素原子をH, とする。 Ha とH の水素原 子1個あたりの置換されやすさが同じであると仮定したとき, プロパン と塩素の反応で生成するAとBの物質量の比はいくつと予想されるか。 簡単な整数比で表せ。 問4 実際にプロパンと塩素の反応を行って生成したAとBの物質量の比 を調べたところ, 9:11であった。 水素原子1個あたりで比較すると, HはHに対して何倍置換されやすいといえるか, 有効数字2桁で答え よ。 (東京大) 解説 問1 メタンのC-H結合を1つC-CI 結合に変える。 HCI も生成する。 問2 プロパンのC骨格の対称性に注意しながら, CI原子を1つずつ付けて いくと, 3種 CI CI CI CI CI ここを中心に ○にCI 対称 +c c-c-c, c-c-c, c-c-ć OXO C-C-C 同じ B CI I プロパン XCI +CI C-C-C, C-C-C 1 CICI ここを中心に対称 2種 03 アルカン 65

英検準一級対策の要約問題です‼︎ 添削していただきたいです✒️よろしくお願いします🙇

Brazil implemented cable car system so that they acsess to the city of Rio de Janeiro from the all areas before Olympics. Because of it, people could see see fighting with better acsess. And it made people visit there comfortably. However, some people oblidged to leave there. due to construction of it. Futhermore, the system couldn't do well and finished.

比較の日本語訳の問題です。教えてください。1と3は合っているか確認よろしくお願いします🙇

1)I had no more than 1,000 yen in my wallet then. 2) A dolphin is no more a fish than a dog is. 3) Helen really loves movies. She sees no less than ten movies in a month. 4) The game was all the more exciting because my favorite team won. 5) Humans are still superior to AI in creating ideas.

日本語訳の問題です。教えてください。よろしくお願いします🙇

1) I had no more than 1,000 yen in my wallet then. 2) A dolphin is no more a fish than a dog is. 3) Helen really loves movies. She sees no less than ten movies in a month. 4) The game was all the more exciting because my favorite team won. 5) Humans are still superior to AI in creating ideas.

教えてください！

using the words in the box. One word is extra. C. The prefix ex- means "out" or "out of" (e.g., extract). Complete the sentences except exit extend extract 1. "Ghost nets" are a serious problem along Australia's northern coastline; they can for more than several hundred meters in length. 2. The store is open every day Sunday. 3. Boyan Slat's foundation, Ocean Cleanup, is developing various technologies that can plastic waste from our oceans.

英語の授業で、西郷隆盛についてプレゼンするんですけど、これで大丈夫か教えてください！🙇‍♀️ （テレビに写真が映し出される） His name is Takamori Saigo. He was born in Kagoshima on January 23,1828. ... 続きを読む

横線部の〈where〉は関係副詞でしょうか。解説もお願いします🙇

dangerous places. He thought, "Even if people cannot see, their feet can feel the difference of the surfaces. (3) This will warn them of danger." In 1965, after many trials and errors*,/he created some samples with his own money. 15 He gave these samples to the local government. In 1967, 230 of his blocks were placed in front of an intersection* in Okayama City, Japan. These These were the world's first Braille Blocks. 3 Over time, the use of Braille Blocks spread in Japan, and then around the A-49 world. However, accidents sometimes happened where the blocks had not 20 yet been placed. Local governments and railroad companies quickly started to place the blocks in dangerous areas. As a result, many organizations made the Tenji Blocks with their own designs. This caused some confusion. In 1996, the Japanese government started research to make standards for the Tenji Blocks. A team of scientists and 60 people with vision problems 25 worked together to find the easiest ( A ) to use. Then, in 2001, the standards were finally made. still 4 Although the designs have been standardized, there are (4)many problems. We still see various types of old blocks. They must be replaced with new standard blocks as soon as possible. In addition, the standards do 30 not say the color or material to use, or how to place the blocks. A-50 In March 2012, the ISO* (International Organization for Standardization) A-51 32

when, 〜の使い方がよくわかりません。どのような文法でつかわれてますか？

⑤ Some parents follow a philosophy called unschooling, which allows a child to determine when, and how they want to learn based on their natural curiosity. [藤田医科大〕 unschooling 名 アンスクーリング (学校とは別の環境で教育を行うこと) langu sa dying (at a padd 親の中にはアンスクーリングという方針に従うものもいる。 (in the mic Room of givi

画像の問題教えて欲しいです🙇🏻‍♀️❕

1( )内の語句を並べかえて,会話を完成させましょう。 下線の語は形を変える必要があります。 1."(run / is / in the morning/early) very refreshing." "Yes, it really is." anistsw 2."(I / eat / stop / so much / will / sugar).” “Are you re you serious? You are eating cakes now.” 3. "How (play / tennis/next Saturday/about)?" "Sorry. I have other plans." 4. "My father hates (play/games/me/video).” “So does my father."

Vision Quest Ⅰ の Lesson9-1 Try it out の①、②と Lesson9-2 Try it outの ① の答えが分かる方いたら教えてください！！

Try it 下の語を適切な形で( にいれて、 英文や会話を完成させましょう。 1. The boy ( ) the red T-shirt is John. Next to him is my brother Bob. 2. "I'm sorry to have kept you ( 3. Three days later, the police found the ( ) wallet at the second-hand shop. ) so long." "Don't worry about it." However, they were unable to find the money in it. 4. The photo ( ) from the window upstairs was really beautiful. I hope I can live in such a house one day. steal take/wait / wear 2()内の語句を並べかえて, 英文や会話を完成させましょう。 1. We saw (her the street/her car / across / parking). She must be here somewhere. 2. "Did you watch the baseball game yesterday?" "Yes. It (an/ was / game / exciting)." 3. "Don't you hear something?" "It is (falling/rain/on/the/ the roof)." 4. My father (valuable / his /watch/stolen/had). He was really careless. 5. I (with them talking each other / saw) for a long time. They seemed to have a serious argument. 6. It was windy last night. We (all the windows/keep/to/ had / locked).