Grade

Type of questions

Chemistry Senior High

至急です‼️化学の有機化合物の問題なんですけど、 問題多くて申し訳ないんですけど、Q17からQ24までの答えをどうか教えて頂きたいです🥲🙏🏻🙇🏻‍♂️🙇🏻‍♂️ もし大変でしたら全部でなくてもいいので、、(>人<;)

CnHanta Q17 次の分子式で示される物質の構造異性体をすべて構造式で示し、名称をそれぞれ合えよ。 (1) CH16 (2) C3H8O (3) CsHiCl (4) C4H8BrF Q18 次の化合物のうち、幾何異性体が存在するものをすべて選べ。(4)(5) (1) 1-ブテン (2) プロペン (3) メチルプロペン Q19次の化合物のうち、 光学異性体が存在するものをすべて選べ。 CH3CH(OH) COOH (2) CH3COCH2CH2C1 Q20C.Hg に異性体が何種類存在するか答えよ。4種 Q21 C3H6BrCl に異性体が何種類存在するか答えよ。 (4) 2-ブテン (5) 1,2-ジクロロエチレン (3) CH3CH (CH3) COOH (4) CHCICH Q22 アセチレンにシアン化水素を付加させたときに合成される化合物の構造式と名称を答えよ。 Q23 エチレンに塩化水素を付加させたときに合成される化合物の構造式と名称を答えよ。 Q24 アセチレンを鉄触媒下で加熱した時に合成される化合物の名称を答えよ。 Q25 アセチレンに水を付加させたときに合成される化合物の構造式と名称を答えよ。

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TOEIC・English Undergraduate

動詞の使い分けがわからないです😭

EXERCISE 20➤Looking at grammar. (Chart 5-6) Choose the correct completions. 1. The United States has have a population of around 325 million. an established and respected newspaper. a branch of mathematics. (2.) The New York Times: C:C/DC Caree 3. Statistics is/are 4. The statistics in that report on oil production :C:MKEKECRETKEY) incorrect.* 5. Fifty minutes is are the maximum length of time for the test. 6. Rabies (is) are an infectious and often fatal disease. The blind wants / want us to treat them the same way we treat everyone else. talking with people 8. French is are somewhat similar to Spanish, isn't it / aren't they? The French is are proud, independent people. 10. Does/Do the police have training in mental health issues? 1. Thirty dollars is an unreasonable price for that T-shirt. 12. Four hours of skiing provides / provide plenty of exercise. EXERCISE 21 ▸ Game. are (Chart 5-6) Work in teams. Choose the correct words (or numbers). Then complete the sentences with is or are. 1. The Scots /The Irish The English and Cambridge. 2. Statistics/Linguistics / Physics 3. Diabetes/Measles / Mumps 4. English / French / Afrikaans 5. People from Canada. called are famous for educational institutions like Oxford the study of the structure and nature of language. a blood-sugar illness. the official language of Namibia. Canadas/Canadians / Canadese. covered by water, but drinkable. 6. Approximately 60% / 70% / 80% of the earth only 1% / 10% / 20% of the earth's water 7. 312 x .5+ 100 227/275/256. 8. The United Arab Emirates/The Netherlands/The Philippines Hemisphere (i.e., north of the equator). in the Northern 9. Fish/Whales / Cattle not mammals. 10. Five hundred thousand + five hundred thousand ten hundred / one million / one billion. 11. Macy's/Harrods / Hudson's Bay a department store that began in London. *Statistics is singular when it refers to a field of study (e.g., Statistics is an interesting field of study.). When it refers to particular numbers, it is used as a count noun: singular one statistic (no final -s); plural = two statistics. For example, This

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