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Chemistry Senior High

問7④だと思ったんですけど ①なのはなぜですか?

G odds 意味 - Google 検索 Gthe future coldrain- 【I】 酸化還元滴定に関する次の記述について, 以下の問いに答えよ。 濃度不明の過酸化水素水 10.0mLを正確に取り, 水を加えて全量を100 mL とした。この うちの 10.0mL を正確に取り, 20.0mLの水を加え,さらに希硫酸10.0mL を加えた。その後 0.0250 mol/L 過マンガン酸カリウム水溶液で滴定すると, 36.0 mL 滴下したところで溶液の色 が変化した。この化学反応は次式で表される。ただし, a, bは係数である。 a KMNO4 + 6H2O2 + 3 H2SO4 a MnSO4 + K2SO4 + bO2 + 8 H2O 問6 0.250 mol/L 過マンガン酸カリウム水溶液を200 mL 調製したい。 必要な過マンガン酸 カリウムの質量 (g) はいくらか。最も適当なものを選べ。ただし, 原子量は O=16.0, K=39.1, Mn=54.9 とする。 0.316 0.790 ③ 1.98 ④ 3.16 ⑤ 7.90 ⑥ 19.8 問7 下線部の色の変化はどれか。 ① 無色から赤紫色 ④ 赤紫色から無色 無色から青色 ⑤ 青色から無色 ③ 無色から淡黄色 ⑥ 淡黄色から無色 問8 上記の化学反応式で, 過酸化水素における酸素原子の酸化数の変化はどれか。 ① -2→ -1 ② -2 → 0 ③ -2 → +2 -1 → -2 0 6 -1→ +2 7) 0→ -2 (8 0 → +1 問9 滴下した過マンガン酸カリウムの物質量 (mol) はいくらか。最も適当なものを選べ。 ① 1.44×10-5 の 9.00×10-4 ② 9.00×10-5 ⑤ 1.44×10-3 1.44×10-4 ⑥ 9.00×10-3 問 10 初めの過酸化水素水のモル濃度 (mol/L) はいくらか。 最も適当なものを選べ。 ① 0.0360 ⑤ 0.360 ② 0.0450 ③ 0.0900 ① 0.225 ③ 2.25 ⑥ 0.450 の 0.900

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English Senior High

わかる方、解答をご教授ください。 難しいです。

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English Senior High

Power on 2のLesson 6です!写真が本文なのですが、Part 3にはいくつの長所が書かれてますか?

Tas Lesson6 Vegetable Factories 予習プリント PAF Task-1: Translate underlined parts into Japanese C C PART 1 Takumi: Angelina, have you ever heard of vegetable factories? I learned about them for the first time on TV last night. Such factories were first built in Denmark in 1957, and similar factories were PAI also introduced in the US in the 1970s. Angelina: Vegetable factories-yes, 1 know about them, too. In Japan, they were first built in the early 1980s to produce kaiware sprouts. These factories are now attracting much attention as a new type of agriculture I hear new vegetables like frilice lettuce and ice plant are being produced there. Takumi: Wow! You really knowa lot about vegetable factories. Angelina: Would you like to know more? Takumi: Definitely! もちろみ に C フリルレタズ C PA C C C PART 2 C You may be surprised to hear that we can grow vegetables without the sun and soil. But that is what people do in vegetable factories. In these factories, electric light and fertilized water are used instead of the sun and soil. Temperature and humidity are also controlled. It seems that limited space in vegetable factories is not a big problem. Workers fully use the space by stacking shelves of vegetables. Actually, you can find small vegetable factories in the previolisly wasted space of office buildings or restaurants. At present, the main crops from vegetable factories are leaf vegetables. But in the near future, PA C C Ta more varieties of vegetables are sure to come. し]必ず…する PART 3 What are the good points of vegetable factories compared to traditional agriculture? For one thing, they can provide a stable supply of vegetables, even in bad weather conditions. For another thing, vegetables grow much faster in a controlled environment. Other good points include no use of chemicals and good taste with more vitamins. Unfortunately, vegetable factories still face one challenge. Running them requires a lot of money. Because of this cost, these vegetables are expensive to buy. Hopefully, in the near future, we will have solved this problem. うまくいけば PART 4 文に、科に Talkumi: Agriculture without the sun and soil. Hmm. That's a great idea indeed. Honestly, Ive got a bit of, ahem, “agriculture shock" from what you've just told me in a good way though. Angelina: Ha-hal Have you? Good. If we can develop vegetable factories on a large scale, we may be able to solve the problem of food shortages. Takumi: Yeah, I agree. And the way we view vegetables may change whether we like it or not. Oh, by the way, Angelina, culture and agriculture are closely related, as you can see from the words. Agri-means “farming," and culture means “to grow something." Angelina: Oh, so you're giving alecture now! 422words

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