学年

教科

質問の種類

化学 高校生

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

解決済み 回答数: 1
英語 高校生

2の(2)の答えはAll things considered 3の(2)の答えはConsidering だったんですが、日本語の文自体はそんなに変わらないと思うのですがどうして答えはこうなるのですか?

~5)少年は目を輝かせて, 大きなクリスマスツリーを眺めました。 The boy looked at the big Christmas tree ( -6)教科書を閉じて私の話を聞きなさい。 -1)今日は暑かったので, 2回シャワーを浴びました。 「today / hot / it / being ], I took a shower twice. I took a shower twice. 一2)すべてのことを考慮すると,彼の申し出を受け入れるべきです。 [Considered / things / all ], you should accept his offer. you should accept his offer. -3)バスがなかったので, 駅まで歩いて行かなければなりませんでした。 [no/ buses / being / there ], we had to walk to the station. we had to walk to the station. yalg al 3 日本語の内容を表すように, ( )に適切な語を入れなさい。 1) 一般的に言って, 女性は男性よりも長生きです。 ), women live longer than men. om wolloi O hb easel 2)年齢を考えると, 私の祖父は丈夫です。 ) his age, my grandfather is strong. 3) 空模様から判断すると, まもなく雨が降るでしょう。 odt O ) the look of the sky, it's going to rain soon. a funa o 4)去年の冬に比べると, 今年の冬はとても寒い。 ) last winter, this winter is very cold. 『少年は目を輝かせて. 大きなクリスマスツリーを眺めました。 The boy looked at the big Christmas tree ( ) his eyes ( Listen to me( )your textbooks (

未解決 回答数: 1
英語 高校生

ものすごく至急です💦今日授業で当てられそうなのですか答えが確実じゃなくて焦っています 答えだけでいいのでほんとうによろしくお願いします 根拠の場所あれば教えて欲しいです

次の英文を読み,下の問いに答えなさい。 We all know the saying “To err is human." And this is true enough. When somethine 80es wrong, the cause is overwhelmingly attributed to human error: airplane crashes (70 percent), car wrecks (90 percent), workplace accidents (also 90 percent), You name it, and humans are usually to blame, And once a human is blamed, the inquiry usually stops ans ISL stu an 止 there. But it shouldn'tー atleast not if we want to eliminate the error. S In many cases, our mistakes are not our fault, at least not entirely. For we all have certain biases" in the way we see, remember, and perceive the world around us, and these biases make us commit certain kinds of errors, Right-handed people, for instance, tend to turn right when entering a building, even though that may not afford the best route to take. And most of us, whether left- or right-handed, show a preference for the number 7 and the color blue. We are also so persuaded by our first impressions of things that we are reluctant to change our first answer on a test; yet many studies have shown we would be better off if we did exactly this. Qur expectations can shape the way we see the world and often the way we act in itas well, In one case, people encountered an unknown man and were later told his occupation. When they were told that the man was a truck driver, they said he weighed more%; when they were told he was a dancer, they said he weighed less. In another case, half the people in a restaurant were told their free glass of wine that night came from France; the other half were told their wine came from somewhere else. Not only did the second group eat less of their meals, but they headed for the doors more quickly. Farmers too show the same tendency. Farmers who believe in global warming, for instance, have been shown to remember temperatures as being warmer than those recorded in statistical tables, And what about farmers who do not believe in global warming? They remembered temperatures that were colder than those in the record books. What's important about these examples is not that we think a truck driver is fatter than a dancer or that temperatures are warmer than they used to be. What'simportant is that these effects occur largely outside of our consciousness; we're biased ー we just don't know we' re biased. Some of these tendencies are so strone that eyen_when_we do know

未解決 回答数: 1