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Chemistry Senior High

⑷の式と⑸の質量がどうやって求めたのか分かりません

リード C 基本例題 2 塩化ナトリウムの結晶 塩化ナトリウムの結晶の単位格子を図に示した。 (1) 単位格子に含まれる Na+, Cl-の数はそれぞれ何個か。 X (2) 1 個の Na+ の最も近くにあるCI-は何個か。また,中心 間の距離は何 nm か。 (3) 1 個の Na+ の最も近くにある Na + は何個か。 また,中心 間の距離は何 nm か√2=14,√3=1.7 とする。 (4) 1molの塩化ナトリウムの結晶の体積は何cmか。 アボガドロ定数 = 6.0×1023/mol, 5.6°=176 とする。 (5) 塩化ナトリウムの結晶の密度は何g/cm²か。 Na=23, Cl=35.5 とする。 C 7 解説動画 指針 NaCl の結晶では, Na+ と CI が接していて, Na + どうし, CI どうしは接していない。 1nm=10m=10-7cm 贈答 (1) Na+ (●) 1/1×12 (辺の中心) +1(中心)=4 (個) (4) (5) 密度= CIC CI(●): 1/28×8(頂点)+1/1×6(面の中心)=4 (個) (2) 立方体の中心の Na+ に注目すると, CI は上下, 左右,前後に1個ずつの計6個答 中心間の距離は一辺の長さの1/12 で,0.28nm 圏 -Na り Na+ 0.56 (3) 立方体の中心の Na+ に注目すると, Na+ は立方体の各辺の中心の計 12 個 答 中心間の距離は面の対角線の 1/12で0.56mm×√2x12= 0.392 nm ≒ 0.39nm 答 面の対角線の長さ 4 58.5g (4) 単位格子 (Na+, Cl- がそれぞれ4個ずつ) の体積が (0.56nm)=(5.6×10cm)3 なので, 1 mol (Na+, Cl' がそれぞれ 6.0×1023 個ずつ) の体積は, CI 6.0×1023_176×6.0×10 - 1 (5.6×10 - cm)× 質量 体積 4 0.56nm||| 26.4cm=2.21...g/cm²≒2.2g/cm² cm=26.4cm²≒26cm 答 答 MAG NOTR

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English Junior High

3時から塾ですたすけてお願いします2と3

□ (3) □(4) □ (5) □ (6) 4. 現在完了 演習問題 次の疑問文の答えとして適する文をあとから選び,記号で答えなさい。 □(1) Have you washed your face yet? How long have you studied English? Has she ever skied? □ (4) How often have you visited Okinawa? ア Yes, I have. イ No, she hasn't. ウ Several times. I For three years. □ (2) 2 次の各組の文がほぼ同じ内容を表すように, □(1) It was cold yesterday, and it is still cold. It cold She went to London, and she is not here now. She □ (2) □ (3) to London. I lost my camera, and I don't have it now. I my camera. This is the biggest dog I have ever seen. I have such a big dog before. He came to Japan ten years ago and he is still in Japan. He Japan We have had no rain here for a month. Her mother died six years ago. □ (7) Her mother Six years 3 次の文を ■ (1) に適する語を書きなさい。 ROOM rained here for a month. yesterday. dead for six years. since her mother died. They have finished the work. ( 疑問文に) bratasy の英文を日本文にしなさい。 I have been to Nagano twice. 私は2回名古屋に行きました。 内の指示に従って書きかえなさい。 He has already finished his homework. (否定文に) He has hot already finished his homework, 2) They are listening to music. (文末に for two hours をつけて現在完了進行形の文に) J She has lived in Kyoto since 1992. (下線部をたずねる疑問文に) ten years. 次 2) 3

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English Junior High

中学生英語です。 この問題で「日本やアジア諸国では死者数が多くない」的な事を言いたい事は分かるのですが、アのmanyとウのhighでどっちでもいいのでは…と思いました。答えはウなのですが、どなたか解説お願いします。

IX. 次の 〔1〕 〔2〕 の英文を読んで、それぞれ設問に答えなさい。 [1] By May 2021, more than 3,000,000 people around the world died from the new *coronavirus. The number of deaths was about 600,000 people in the U.S. and 1,000,000 in Europe. On the other hand, the number of deaths was not as ( A ) in Japan and other East Asian countries. We do not understand the reason for the low death *rate in East Asia. Some researchers think that it is because of (B) Asian cultures. Many people in Japan and China wear masks, but masks are not common in North America and Europe. Masks are helpful because the virus enters the body ( C ) the nose and mouth. Another reason may be that Asian people do not shake People touch their face many times every day, and that carries the virus to their nose and hands. mouth. On the other hand, the coronavirus can be more dangerous for people in North America and Europe. All people in the world do not have the same risk of illness. For example, *skin cancer is a very dangerous illness for people in Europe, but it is not as dangerous for people in Africa. *Experts from all over the world are studying (D) this mystery. But the reason is very difficult to find. However, we can be sure that washing hands and wearing a mask in crowds is very helpful. Notes: coronavirus コロナウィルス rate 率 skin cancer 皮膚がん expert 専門家 問 1 空所(A)に入る語として適切なものを次のア~エから1つ選び記号で答えなさい。 7. many 1. long high I. small

Unresolved Answers: 1
English Senior High

しっかり理解のところ 名詞 whom/which to do はないんですか? 名詞 前置詞 whom/which to do だけですか?

249 発展 Pets should not be given more food will gain too much weight. 1 which 3 than Section 075 250 発展 ② that ④ what (a) Mary needs a well-equipped office to work in. (b) Mary needs a well-equipped office ( )( ) to work. しっかり理解 | 011 名詞+前置詞+ whom/which to do olms i [terlas Nood 〈名詞+前置詞+ whom/which to do〉の表現は,以下のような変形で理解すればよい。 (例1) I am looking for a partner with whom to work. 「私は一緒に働くパートナーを探している」 I work with a partner. 「私はパートナーと一緒に働く」(文) ATO (例2) Wealth is just a means by which to enjoy life. 「富とは人生を楽しむための手段にすぎない」 → a partner with whom I work 「私が一緒に働くパートナー」(関係詞節) → a partner with whom to work 「一緒に働く (ための) パートナー」 * I work が to work に変わったと考える。 Section 076 251 is dou MAP 例外のない規則など存在しない。 You enjoy life by a means. 「あなたはある手段で人生を楽しむ」(文) → a means by which you enjoy life 「あなたが人生を楽しむ (ための)手段」(関係詞節 → a means by which to enjoy life 「人生を楽しむ(ための)手段」 * you enjoy life が to enjoy life に変わったと考える。 You should give this CD to ( ) wants it. 1 who ② whom ③ whoever 4 whomever 24 <東京家政学院

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English Senior High

250番 Mary needs a well equipped office to work in. はwork in の目的語のoffice が省略されている形ですよね。 後、冠詞のaってどういうときに使いますか?

248 発展 249 RIN There is (has / rule/exceptions/1 発展 |Pets should not be given more food ( ) they need. Otherwise, they weight. will gain too much ① which than Section 075 250 (2) that (4) what (a) Mary needs a well-equipped office to work in. (b) Mary needs a well-equipped office ( )( ) to work. (例2) Wealth is just a means by which to enjoy life. 「富とは人生を楽しむための手段にすぎない」 しっかり理解 011 名詞+前置詞 + whom/which to do 〈名詞+前置詞+ whom/which to do> の表現は、以下のような変形で理解すればよい。 (例1) Ⅰam looking for a partner with whom to work. 「私は一緒に働くパートナーを探している」 I work with a partner. 「私はパートナーと一緒に働く」(文) → a partner with whom I work 「私が一緒に働くパートナー」(関係詞節) → a partner with whom to work 「一緒に働く (ための) パートナー」 * I work が to work に変わったと考える。 You enjoy life by a means. 「あなたはある手段で人生を楽しむ」 (文) → a means by which you enjoy life 「あなたが人生を楽しむ (ための手段」 → a means by which to enjoy life 「人生を楽しむための)手段」 * you enjoy life が to enjoy life に変わったと考える。 Section 076 251 You should give this CD to ( ① who 3 whoever W <南山大 W <山梨大) 24

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