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理科 中学生

すいません。🙇今日テストで、見直してたらわからなくなり。お願いします。7番教えてください。

銅が ② g得られた。 され, Cu 2 64:16:1 次の文章を読んで,あとの問いに答えなさい。 ただし, 原子1個の質量比はCu:O=4:1 H: 1:16であ る。 銅の酸化物には,黒色の酸化銅(化学式CuO)と赤色の酸化銅(化学式 Cu2O) がある。 いま、 黒色の酸化銅と赤色の酸 化銅の混合物があり,これを混合物Aとする。混合物A9.6gをよくかき混ぜながら強く加熱したところ,すべてが黒色 A.bg の酸化銅になり, その質量は10.0g だった。 2 C₁₂0-1202-146₂0 + 0₂ 次に,この黒色の酸化銅を6.0g とり, 右の図のようにして水素を通じながら加熱し たところ、 黒色の酸化銅は完全に 1. ①に適切な語句を入れなさい。 20+ 2 (2017-1202-) Cuz0+302→ 14 240 食 一水素を送る。 C 6 uso Cot Cuo f14₂-1 Cu -+1+₂0 2. 2 にあてはまる数値を答えなさい。 3. 下線部アで起こる反応の化学反応式を書きなさい。 4. 下線部で起こる反応の化学反応式を書きなさい。 5. 下線部①の反応で生じた水は何gか。 6.混合物A9.6g 中に赤色の酸化銅は何g含まれていたか。 7. 下線部①の反応で、黒色の酸化銅6.0gの代わりに、混合物 A6.0gを用いると,銅が何g得られるか。 313 18 640216² 80 2 X 18 酸化銅 0+02-260 2416 ガラス管 ステンレス の皿 20

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英語 高校生

このmustは強調ですか?

120 was as big as a city and (around le panony V C S C stretched (farther than the eye could see) >. It was full ( of the V loveliest plants and trees). ② (Among the trees <of the Emperor's garden>), there lived a little VS ulat brown bird <which was not beautiful (at all)>. It was a nightingale. C SV (When the nightingale opened her mouth and sang), beautiful music V① S V'2 0① came out. "Bring her (to me) (at once)!" he cried. SV ③ (One day) the Emperor was told (of the nightingale's song). S V 01 O' ④ (When she heard [that the Emperor wished [to hear her song]]), O' V" '0" the nightingale (gladly) went (to the palace). S V this heavenly music (every day)." 0 5 "Put the bird (in a golden cage)," said the Emperor. "I (must) hear Ovo S SV 強調 and sang (no more). V② ⑥ But the poor nightingale hated [to stay (in a small cage) (all day)] S V① 0① 5 10 15 その庭ば,取高に美しい草木でいっぱいだ た。 oblon and Emperor ✓ great った。 △ palace ⑥ 皇帝の庭の木々の中に、全く美しくない around 羽の小さな茶色い鳥が住んでいた。 それはウグ garden abstretch イスだった。 そのウグイスが口を開いてさえず ると, 美しい歌声が出て来るのだった。 ③ ある日皇帝は、そのウグイスの鳴き声のこ とを伝えられた。 「その鳥をすぐに私のところ へ持って来い」と彼は叫んだ。 皇帝が自分の鳴き声を聞きたがっていると 聞いて, ウグイスは喜んで宮殿へ行った。 「その鳥を金のかごに入れよ。 余はこの至 福の歌声を毎日聞かずにはおれぬ」 と皇帝は言 った。 at onc ⑥ しかしそのかわいそうなウグイスは , 1日 wish 中小さなかごの中にいるのを嫌がり,もう鳴か heari なくなった。 ► there lived~ ajuel farther than f _eye can see be full of ~ □ lovely ■ plant □ among not..... at renightinga ✓ mouth cotcome ou □ one day Ao tell Z bring A gladl ✓ put golc cag ■ hea ✓ po ha 1st a

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英語 高校生

英語リーディングの共通テスト大門3のB 4つの選択肢を並べるような問題が苦手で、対策問題集を解いている時にいつもどこかしら間違えてしまいます。時間制限を決めつつ、正しい答えを選ぶことがとても難しい状態です。 どのように考えれば良いでしょうか。 また模試などでは、時間と正確... 続きを読む

B You enjoy outdoor sports and have found an interesting story in a mountain climbing magazine. Attempting the Three Peaks Challenge By John Highland Last September, a team of 12 of us, 10 climbers and two minibus drivers, participated in the Three Peaks Challenge, which is well known for its difficulty among climbers in Britain. The goal is to climb the highest mountain in Scotland (Ben Nevis), in England (Scafell Pike), and in Wales (Snowdon) within 24 hours, including approximately 10 hours of driving between the mountains. To prepare for this, we trained on and off for several months and planned the route carefully. Our challenge would start at the foot of Ben Nevis and finish at the foot of Snowdon. Ben Nevis (▲1344 m) Scafell Pike (▲977 m) Snowdon (▲1085 m) We began our first climb at six o'clock on a beautiful autumn morning. Thanks to our training, we reached the summit in under three hours. On the way down, however, I realised I had dropped my phone. Fortunately, I found it with the help of the team, but we lost 15 minutes. We reached our next destination, Scafell Pike, early that evening. After six hours of rest in the minibus, we started our second climb full of energy. As it got darker, though, we had to slow down. It took four-and-a-half hours to complete Scafell Pike. Again, it took longer than planned, and time was running out. However, because the traffic was light, we were right on schedule when we started our final climb. Now we felt more confident we could complete the challenge within the time limit. Unfortunately, soon after we started the final climb, it began to rain heavily and we had to slow down again. It was slippery and very difficult to see ahead. At 4.30 am, we realised that we could no longer finish in 24 hours. - 16- (2110-16)

未解決 回答数: 1
英語 中学生

⑴がわからないです!よかったら教えてください💦 長文読解のコツとかもあったら教えてくれると嬉しいです✨

次の英文を読んで、あとの問いに答えなさい。 <千葉日大第一改 J.K.Rowling is the author of the Harry Potter books. J.K.'s name is *Joanne Kathleen. She was born in 1965 in a small town near *Bristol, England. Joanne lived with her parents and her sister. The Rowling family was not rich. Joanne did not go to special schools. ( 1 ) She loved to read and write stories. Joanne went to *Exeter University, and she graduated in 1987. After graduation, she moved to London and worked there at different office jobs. In her free time, she wrote stories. In 1990, Joanne's mother died, and she was sad. ( 2 ) She saw an *ad in the newspaper for a job as an English teacher. The job was in *Portugal. She had an *interview, and she got the job. In Portugal, Joanne married a Portuguese man. The next year, Joanne had a daughter, but she was not happy in her marriage. She left Portugal with her daughter and went to live in *Edinburgh, Scotland, near her sister. Life was very difficult for Joanne. She took care of her daughter. She was alone, and nobody helped her. She had no money and no job. Then one day, on a train, she thought about the Harry Potter story. She began to write that story. Joanne liked to go to a coffee shop to write. (3) She drank coffee and wrote. Her daughter slept beside her. After five years, Joanne finished writing the first Harry Potter book. She sent it to many book publishers. ( 4 ) Finally, a publisher liked it, but the publisher said, “This is a children's book. Adults won't read it. You won't make a lot of money." In 1997, Joanne's dream to publish her book came true: Harry Potter and the Sorcerer's Stone was in the bookstores. Children and their parents loved the book, and it became famous all over the world. Now Harry Potter is in sixty-five languages. The publisher was wrong about one thing: Everyone loves Harry Potter children and adults. Over 100 million books were sold in 1999. Then two Harry Potter books became popular movies. J.K.Rowling wrote four more Harry Potter books after that. All those books became movies, too! On January 11, 2007, J.K.Rowling finished her seventh and last Harry Potter book. She will continue to write, but not Harry Potter books. The question is, what will people do without Harry Potter? 注 Joanne Kathleen ジョアン キャスリーン(人名) Bristol ブリストル Exeter University エクスター大学 ad Portugal ポルトガル (国名) interview Edinburgh エディンバラ (地名) (1) ①~④の( に適するものを,ア~エから1つずつ選び,記号で答えなさい。 She sat there for many hours. 7 She wanted to leave England. They said that they didn't like it. 詞 (3) (2) 本文の内容にも I She was a quiet child. D( ) @ ( ) 3( ) 4( )

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数学 高校生

2次関数の最大、最小の問題がわかりません。 a<0のときX=1で最大値をとるんじゃないんですか? なぜ、X=aで最大値a2乗-2a+2になるのか、分かりません! 優しい方詳しく説明教えてください!

132 基本 例題 80 2次関数の最大・最小(5) Q を定数とする。 asxSa+2 における関数f(x)=x2-2x+2について、 指針 この問題では、区間の 幅は2で一定であるが、 の増加とともに区間 全体が右に移動するか ら、軸x=1と区間 ax+2の位置関 上から x=x=a+2 f(x)=x^²-2x+2=(x-1)'+1 y=f(x)のグラフは下に凸の放物線で、軸は直線x=1 (1) 区間 a≦x≦2の中央の値は α+1 [1] a-1 < 1 すなわちα <0 のとき [1 右のグラフから, x=αで最大と なる。 最大 最大値はf(a) =q²-2a+2 [2] α+1=1 すなわち α = 0 のとき 右のグラフから, x=0.2で最大 となる。 最大値はf(0)=f(2)=2 (2) 最小値 [3] α+ 1 > 1 すなわち>0のとき 右のグラフから、x=a+2で最大 となる。 最大値は f(a+2)=(a+2)²-2(a+2)+2 =a²+2a+2 (1) 最大値 関数 y=f(x)のグラフは下に凸であるから、軸から遠いほどぃの値は大き い。よって、区間の両港(x=0、x=a+2) と軸までの距離が等しいときのの味が 合分けの境目となる。 (2) 最小値グラフは下に凸であるから、軸が区間に含まれるときと含まれないとき に含まれないときは区間の右外か左外かで場合分けをする。 x-a [2]\ [3] x=a+1x=1 HOF x=a+2 最大←------最大 x=a x=a+2 x=0x=1x=2 [α<0のとき x=αで最大値α²-2a+2 a=0のとき x=0, 2で最大値2 la>0のとき x=a+2で最大値 +2a+2 ・軸 最大 x=1 x=a+1 \x=a+2 区間が 動く x=Q atat2 2 =a+1 軸が区間の中央x=a+1 より右にあるので、x=q の方が軸から遠い。 よって f(a)>f(a+2) 軸が区間の中央x=a+1 に一致するから、 軸と x=a, a +2 との距離が等 しい。 よってf(a)=f(a+2) 軸が区間の中央x=a+1 より左にあるので、 x=α+2の方が軸から遠い よってf(a)<f(a+2)

解決済み 回答数: 1