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理科 中学生

化学変化の質量計算の問題です なんで炭素0.45のときにグラフが折れ曲がるかがわかりません。どういう計算をしたらわかるのでしょうか

2 一定量の酸化銅に反応する炭素の量について、次の 〔実験 を行った。 (実験) ① 酸化銅 6.0g と乾燥した炭素粉末 0.15gをはかり取った。 ② 酸化銅に乾燥した炭素粉末を加え、よく混ぜた後に試験管に入れ、 図1のような実験装置で十分に加熱して気体を発生させた。 ③ 気体が発生しなくなったら、 ガラス管をピーカーから取り出し、 加 熱するのをやめて、ゴム管をピンチコックでとめた。 ④その後、試験管を冷却し、反応後の試験管内にある物質の質量を測 定した。 ⑤次に、酸化銅の質量は変えずに、炭素粉末の質量を0.30g、0.45gと 変え、それぞれについて、 ② から④までの操作を行った。 図 酸化銅と炭素 粉末の混合物 ピンチコック ゴム管 ガラス管 石炭水 表は、これらの実験結果をまとめたものである。 なお、反応後の試験管内にある気体の質量は無視できるものとし、 酸化銅はと酸素が質量比41で結合していることがわかっているものとする。 表 酸化銅の質量(g) 加えた炭素粉末の質量[g] 6.0 6.0 6.0 60 20 0.15 0.30 0.45 1,35 反応後の試験管内にある物質の質量[g] 5.6 5.2 4.8 次の(1)(2)の問いに答えなさい。 (1)酸化銅の質量は 6.0g のままで、炭素粉末の質量を 0.60g、 0.75g 0.90gと変え、それぞれについて 〔実験)の② から④ま での操作を行った。加えた炭素粉末の質量と反応後の試験管内に ある物質の質量との関係を表すグラフを図2に書きなさい。 な お、表の結果もグラフにすること。 (2)酸化銅 20.0gと炭素粉末 1.5gをはかり取り、〔実験の②か ら④までの操作を行った。 反応後の試験管内にある物質の質量 は合計何gか。 また、発生した気体は何gか。 求めなさい。 (1) 図2に記入 図2 6.0 5.8 反応後の試験管内にある物質の質量 g 5.6 5.4 5.2 5.0 g 14.95 4.8 g (g) 4.6. 0.15 0.30 0.45 0.60 0.75 0.90 2 Cup+ (->2 Cut Co₂ 加えた炭素粉末の質量[g]

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英語 高校生

最後の文のwhat value is B(smellが入ります)の文構造を教えて頂きたいです。よろしくお願いします。

they can s example, follow coastlines and thr When they get very close 4 Mont to where they want to be, many use their sense of smell. anger as Homing pigeons give a clue to this. ("Homing" is not the same as migration. It suggests that pigeons can find their way home when taken by train or truck to some far-distant place and then released. But homing surely has some of the same mechanisms; migration does, and so can give clues to how it works.) It seems that as pigeons get fairly close to their home, they first pick up general smells that tell of bird dwellings-perhaps the general tempting stink of ammonia. As they get nearer, the smells become more specifically pigeon-like. Finally, as they get very close, they recognize the very particular odor of their own flock in its own space. More and more evidence is revealing that humans, too, have a wonderful awareness of odor, even if they do not consciously recognize it, such that they find particular men or women attractive or disgusting according to their primitive substances such as sweat no doubt a cooling thought for human beings have risen above such things. We do not those who like to suppose that (2) normally think of birds as creatures that attach importance to smell, but many of them 。 do, in many contexts. 112055見る形 137. ho doubt, but なるほしだが、 But what use are A clues when a bird is above some apparently boundless ocean? What value is (B) when it is a thousand miles from where it wants to be? What else is there? O is value. air force, havy, army. doy and the moon

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英語 高校生

He would say that God had given him a tail to keep the flies off, but that he would sooner have had no tail and no flies. soonerは「すぐに」って訳... 続きを読む

2 Animal Farm pig, with a wise and benevolent appearance in spite of the fact that his tushes had never been cut. Before long the other animals began to arrive and make themselves comfortable after Jessie and Pincher, and then the pigs, who settled down in the their different fashions. First came the three dogs, Bluebell, themselves on the window-sills, the pigeons fluttered up to the straw immediately in front of the platform. The hens perched rafters, the sheep and cows lay down behind the pigs and began to chew the cud. The two cart-horses, Boxer and Clover, came in together, walking very slowly and setting down their vast hairy hoofs with great care lest there should be some small animal concealed in the straw. Clover was a stout motherly mare approaching middle life, who had never quite got her figure back after her fourth foal. Boxer was an enormous beast, nearly eighteen hands high, and as strong as any two ordinary horses put together. A white stripe down his nose gave him a somewhat stupid appearance, and in fact he was not of first- rate intelligence, but he was universally respected for his steadi- ness of character and tremendous powers of work. After the horses came Muriel, the white goat, and Benjamin the donkey. Benjamin was the oldest animal on the farm, and the worst tempered. He seldom talked, and when he did it was usually to make some cynical remark - for instance he would say that God had given him a tail to keep the flies off, but that he would sooner have had no tail and no flies. Alone animals on the farm he never laughed. If asked why, he would among the say that he saw nothing to laugh at. Nevertheless, without openly admitting it, he was devoted to Boxer; the two of them usually spent their Sundays together in the small paddock beyond the orchard, grazing side by side and never speaking. The two horses had just lain down when a brood of duck-

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英語 高校生

共通テストで8割以上取りたいと思っている高校生です。 写真はシステム英単語の一部を撮ったものなのですが、 赤のところは勿論、どこまで覚えるべきでしょうか?

588 MINIMAL PHRASES 587 REIS an extremely difficult problem [ikstrí:mli] ■gradually become colder [grédzuali] ◇grádual 589 || instantly recognizable songs [ínstantli] 592 流動的 extrémeotie 同? > instant 同? 591 He's kind; moreover, he's strong. [mo:róuver] = fúrthermore 流な nonetheléss relatively few people [rélativli] 590 He is rich; nevertheless he is unhappy. 彼は金持ちだが,それにもかか [nevardalés] わらず、不幸だ = compáratively ◇ rélative 593 Dan apparently simple question (アク?) = ★ Apparently he is old. It appears that he is old. >appárent Q訳しなさい。 1) The difference became apparent. 2) the apparent difference それにも関わる 非常に難しい問題 形極端な、過激な極端 amoal だんだん冷たくなる 形徐々の、段階的な vinidedong すぐにそれとわかる歌 (=immediately) 名瞬間 形瞬時の それにもかかわらず 彼は親切で、その上強い (=besides) その上、さらに,しかも 比較的少数の人々 相対的に 副比較的 相対的な比較上の名親せき 一見簡単な問題 [aparantli] 見たところでは 形①明らかだ ② 外見上の、うわべ ★補語は①の意。名詞限定では ② が多い。 A 1) 「違いが明 594 595 59 C (1 5

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