確率の減っていく時と変わらない時の区別が問題文では分からない時はどうしたらいいのですか…😞？ 問題文に戻す戻さないが書いてない時の区別を教えて欲しいです！(語彙力なくてすみません)

ray 11// Mf 2345 \\// \/ 3 2 N J \//

中三です。中二の復習をしようと思って理科の勉強をしているのですが、これら問題が全くわかりません。回答を見ても解説が載ってないので、、、、、 特に大問一の問二が分かりません。わからない点としては、 ①そもそもこの問題では酸化銅を完全に還元できるのか。 ②①の場合どう... 続きを読む

↑ 22 <練習問題≫ 1 酸化銅の粉末 9.60g に異なる質量の炭素粉末をよく混ぜて混合物とし, 図のような 装置を用いて加熱したところ, いずれの場合も二酸化炭素が発生した。 表は, 加熱前 に混ぜた炭素粉末の質量と加熱後の試験管に残った粉末の質量をまとめたものである。 これについて 次の問いに答えよ。 ただし、混ぜた炭素粉末の質量が0.72gのときだ け 混合物がす すべて赤色に変化 していた。 混ぜた炭素粉末の質量 [g] 0.24 0.48 0.72 0.96 1.20 試験管に残った粉末の質量 [g] 8.96 8.32 7.68 7.92 8.16 石沢水・ 1表で混ぜた炭素粉末の質量が①0.24g, ②0.72g, ③1.20gのとき、加熱後の試験管に残った物質は何か。 すべて化学式で答えよ。 問2 酸化銅の粉末 8.0g と炭素粉末 0.3gの混合物を試験管に入れて十分に加熱した場合、 試験管内に残った固体 の質量の合計は何gか。 間2 ① 2 化学変化による質量の変化を調べるために、 次の実験を行った。 これについ て後の問いに答えよ。 実験 A~E斑の各班で銅の粉末をはかりとり, それぞれ、 粉末を図のようによく かき混ぜながら、黒くなるまで十分に加熱した。 その後, ステンレス皿が冷え てから質量をはかった。 表は、 各班の結果をまとめたものである 銅の粉末の質量(g) 加熱後の質量(g) 問1 A班 B班 C班 D班 E班 1.2 0.8 2.0 1.6 0.4 1.5 1.0 22.5 2.0 0.5 問1 この実験で、加熱するときに銅の粉末をよくかき混ぜるのはなぜか。 その理由を簡潔に書け。 問2この実験で起きた化学変化を化学反応式で表せ。 間3 A~E斑の実験結果をもとに、 銅の粉末の質量を横軸にとり、 銅の 粉末の質量と反応した酸素の質量との関係を表すグラフを図2にかけ。 問4 新たに 2.8gの銅の粉末をはかりとり, 加熱した。 途中で加熱する のをやめて、質量をはかったところ 3.2gになった。 このとき, 酸素 と反応していない鋼の粉末は何gか。 問2 問1 図2 問2 反応した酸素の質量 応 0.4 図1 た 0.3 0.5 素 0.2 問3 図2に 記入せよ 〔g〕0 酸化物の質 0.1 2.0 酸化鋼･ と炭素 1.0 鋼の粉末 量 0.5 [g] 0 0 3 銅とマグネシウムの粉末の質量をいろいろと変えて十分に加熱し、 加熱 後の質量を調べたところ、 図のような結果が得られた。 次の問いに答えよ。 2.8gを十分に加熱したとき, 何gの酸化銅ができるか。 間 問2 マグネシウム1.2gを十分に加熱したとき, 反応する酸素は何gか。 問3 銅を十分に加熱したとき、 酸素 1.0g と結びついた鍋は何gか。 問4 マグネシウム原子50個は何個の酸素分子と結びつくか。 問5 3.1gをあまりかき混ぜずに加熱したところ, 加熱後の質量が 3.4gに なった。このとき, まだ反応していない鋼は何gと考えられるか。 問6 一定質量の酸素と反応する銅とマグネシウムの質量の比を最も簡単な整数の比で表せ。 問7 銅1.6gにマグネシウムが混入したものを十分に加熱したところ、 加熱後の質量が2.5gになった。 図より、 加 熱前の混合物に含まれていたマグネシウムの質量は何gと考えられるか。 問1 問2 間3 問4 問5 ステンレス皿 0.4 0.8 1.2 1.6 2.0 鋼の粉末の質量 [g] 問4 1.5 ･マグネシウム 1 鋼 0 0.2 0.4 0.6 0.8 1.0 1.2 金属の質量 [g] 間7

答えがない高校の過去問です。 回答確認のために教えてほしいです。

【2】次の英文を読んで, 下の(1)~ (5)の英文の( を書きなさい。 )に当てはまる最も適当なものを, それぞれア~エの中から1つずつ選び, その記号 *Ogasawara Islands are a group of islands in *the Pacific Ocean, about. 1000 kilometers south of Tbkyo. There are more than 30 islands, and about 3000 people live on the two largest islands. They are sometimes called “Tolyo's *Hidden Islands' or **the Galapagos of the East". When Ogasawara people go to Tbkyo, they have to take a ferryboat for 24 hours because there is no airport. Ogasawara Islands are far from the main islands, so there are many kinds of *unique plants and animals.They are called *endemic species. Thirty - six percent of the plants on the islands'are endemic species. We can see those plants only in Ogasawara Islands. Because only plants and animals that have *adapted to Ogasawara *environment could *survive, unique *ecosystems were developed. This is a story about people who saved two kinds of animals on Ogasawara Islands. One is a red-headed wood pigeon, Karasu Bato".: This is one of the endemic species on Ogasawara Islands. Birds usually live on trees and *protect themselves from their *enemies. But red-headed wood pigeons on the islands have no enemies, so they live on the ground. Their living environment has changed since people brought cats to the islands as pets. Some of them *went wild and became *stray cats. Amother cat usually has about 20 babies a year, so the number of the stray cats *kept increasing and a lot of pigeons were eaten by them. In 2002, the number of the pigeons was only about 40. People began to think they should do something to protect this endemic species and natural environment on Ogasawara Islands. In 2008, people on the islands, Japanese and *overseas researchers, *public officials and animal doctors met together and started a project to save the pigeons. At thé meeting, they decided to *get rid of the stray cats, but they didn't know what to do. So after the meeting, they asked *the Tbkyo Veterinary Medical Association for advice. Animal doctors in this association *cooperated with a lot of volunteers and started a project to save the stray cats. They said, “The pigeons can't survive outside the islands, but cats can live in Tokyo. We want to save both kinds of animals,” The stray cats were *caught and carried to Tbkyo by ship. Animal doctors and volunteers took care of them and looked for their new fanmilies. From 2008 to 2018, about 800 stray cats were sent to Tokyo to start their new ife. Also, the number of pigeons has increased to about 400 now. This story shows that people may have a bad *influence on the natural environment, but we can protect and make it better by cooperating with each other. A person who took part in this project said, “It is important for us to think how we can keep the natural environment for the future." “Aka-gashira *the Pacific Ocean 太平洋 *unique 独特の *environment 環境 *went wild 野生化した *Hidden 隠された *endemic species 固有種 *ecosystems 生態係 (注) *Ogasawara Islands 小笠原諸島 *the Galapagos ofthe East 東洋のガラパゴス *adapted adapt 「適応する」 の過去形·過去分詞 *protect~ ~を守る *kept increasing 増え続けた *get rid of ~ *suIvive 生き残る *stray cats ノラネコ *public officials 公務員 *enemies 敵 *overseas researchers 海外の研究者 *c0operated 協力した ~を駆除する *caught catch 「~をつかまえる」の過去形·過去分詞 *the Tokyo Veterinary Medical Association 東京都獣医師会 *influence 影響

答えがない高校の過去問です。 回答確認のために教えてほしいです。

【2】次の英文を読んで, 下の(1)~ (5)の英文の( を書きなさい。 )に当てはまる最も適当なものを, それぞれア~エの中から1つずつ選び, その記号 *Ogasawara Islands are a group of islands in *the Pacific Ocean, about. 1000 kilometers south of Tbkyo. There are more than 30 islands, and about 3000 people live on the two largest islands. They are sometimes called “Tolyo's *Hidden Islands' or **the Galapagos of the East". When Ogasawara people go to Tbkyo, they have to take a ferryboat for 24 hours because there is no airport. Ogasawara Islands are far from the main islands, so there are many kinds of *unique plants and animals.They are called *endemic species. Thirty - six percent of the plants on the islands'are endemic species. We can see those plants only in Ogasawara Islands. Because only plants and animals that have *adapted to Ogasawara *environment could *survive, unique *ecosystems were developed. This is a story about people who saved two kinds of animals on Ogasawara Islands. One is a red-headed wood pigeon, Karasu Bato".: This is one of the endemic species on Ogasawara Islands. Birds usually live on trees and *protect themselves from their *enemies. But red-headed wood pigeons on the islands have no enemies, so they live on the ground. Their living environment has changed since people brought cats to the islands as pets. Some of them *went wild and became *stray cats. Amother cat usually has about 20 babies a year, so the number of the stray cats *kept increasing and a lot of pigeons were eaten by them. In 2002, the number of the pigeons was only about 40. People began to think they should do something to protect this endemic species and natural environment on Ogasawara Islands. In 2008, people on the islands, Japanese and *overseas researchers, *public officials and animal doctors met together and started a project to save the pigeons. At thé meeting, they decided to *get rid of the stray cats, but they didn't know what to do. So after the meeting, they asked *the Tbkyo Veterinary Medical Association for advice. Animal doctors in this association *cooperated with a lot of volunteers and started a project to save the stray cats. They said, “The pigeons can't survive outside the islands, but cats can live in Tokyo. We want to save both kinds of animals,” The stray cats were *caught and carried to Tbkyo by ship. Animal doctors and volunteers took care of them and looked for their new fanmilies. From 2008 to 2018, about 800 stray cats were sent to Tokyo to start their new ife. Also, the number of pigeons has increased to about 400 now. This story shows that people may have a bad *influence on the natural environment, but we can protect and make it better by cooperating with each other. A person who took part in this project said, “It is important for us to think how we can keep the natural environment for the future." “Aka-gashira *the Pacific Ocean 太平洋 *unique 独特の *environment 環境 *went wild 野生化した *Hidden 隠された *endemic species 固有種 *ecosystems 生態係 (注) *Ogasawara Islands 小笠原諸島 *the Galapagos ofthe East 東洋のガラパゴス *adapted adapt 「適応する」 の過去形·過去分詞 *protect~ ~を守る *kept increasing 増え続けた *get rid of ~ *suIvive 生き残る *stray cats ノラネコ *public officials 公務員 *enemies 敵 *overseas researchers 海外の研究者 *c0operated 協力した ~を駆除する *caught catch 「~をつかまえる」の過去形·過去分詞 *the Tokyo Veterinary Medical Association 東京都獣医師会 *influence 影響

至急お願いします。

3| 次の英文は,中学生の雄太(Yuta)と、アメリカからの留学生のジュディ(Judy)の対話の一部であ 。また。右の図は、雄太とジュディが見ているポスター(poster)を示したものである。これらに関 して、1から6までの問いに答えなさい。 点字ブロックについて知ろう! 日本で使われている点字ブロックには2つの種類があります。 写真1 Yuta: Hi, Judy, What are you looking at? Jay Hi, Yuta. I'm looking at this poster. It's a poster about *tactile paving, rignt? Yuta: Yes, p00 bo。 bo0o. boo。 【警告ブロック】 注意すべき箇所を示す tactile paving in your country? 【誘導ブロック) JHay No, I haven't. So I was *surprised when I saw it in Japan for the irst time. Yata: Tactile paving was first used in Japan about fifty years ago. Judy: I didn't know (2) that., Tell me more about it. 進行方向を示す Sure.Look at the poster. There are two kinds of tactile paving in Japan. They are used for aifterent "purposes, One is used to tela person his or her *direction. The other one is used to tell a person the places to be ブロックの上に自転車をとめてはいけません。 写真2 アイマスクをつけ、白杖を持って歩く体験を9月に行いました。 【生徒の感想) Judy: I see. THra: Tactile paving is very important for *visually impaired people. Look at Picture 1. A man can't walk *along the tactile paving because * アイマスクをして歩くことはとても怖かったです。点字ブロッ クはとても大切なものだと思いました。 *視覚に障がいがある人のためにするべきことについてもっと考 えたいと思いました。 on it Judy: That's not good. Pata: Look at Picture 2. Last September. some students in my school tried to walk with eye masks and *white canes, Here are some messages from the students. Judy: What do they say? Huoie 図 Puta: One student says, "Walking with an eve mask was very *scary. I learned that tactile paving is very important." Another student says, "I want to think visually impaired people." for 1 上のポスターを参考に、二人の対話が成り立つよう,下線部1),(3), (4)に適切な英語を書きなさい。 od 2 下線部2)の指す内容は何か。具体的に日本語で書きなさい。 Judy: That's great. Is tactile paving used in other countries? Yuta: Yes. I visited a city in *Germany with my family two years ago, My father studied there for six months when he was a student, We visited his friend. I saw tactile paving in the city and I learned (5) an interesting thing there. 3 本文中の に入る語として、最も適切なものはどれか。 ウ happy ア tired イ excited エ careful m toe Judy: What was that? Yata: In Japan, tactile paving is usually yellow, but in Germany, it was gray. Judy: Oh, really? That'sinteresting. Did you see a lot of tactile paving there? Yuta: No, we didn't. SoI said to my father, "They should have more tactile paving." Judy: I agree. When I learned about tactile paving in Japan, I thought it was a great idea. I's very useful for visually impaired people. Yuta: I think so, too. But my father's friend said, “In Germany, if *someone needs some *help, other people always help the person. So we don't need tactile paving around the city." Judy: I think (6)his idea is also great. I've learned one thing. There are many ways to help other people. Yuta: Right. Visiting other countries is interesting. We can learn many things. Judy: Iwant to visit many places in Japan. (7) Where shouldI visit first? 4 次の |内の英文は,下線部5)の内容を表している。①, ②に入る適切な英語を、本文 から1語ずつ抜き出して書きなさい。 hb od ab In Japan, yellow is usually ( 0) for tactile paving. However, in the city in Germany, the color of the tactile paving was ( 2 ). It was gray. 5 下線部6)の指す内容は何か。具体的に日本語で書きなさい。 6 下線部(7)について, あなたならジュディの質問にどのように答えますか。つながりのある5文程 度の英語で書きなさい。 人UN *purpose(s) =目的 *along~=~に沿って *someone =だれか *surprised =驚いて (注) tactile paving =点字ブロック *direction =道順 *white cane(s) =白杖 *help =助け *visually impaired =視覚に障がいがある はくじ *scary =怖い *Germany = ドイツ

この問題はどのように答えを導き出せば良いでしょうか？

実験3 図6は、円筒形の白色容器を水平な台の上に固定し、図6 糸をつけた円錐形の小物体を容器の底の中心に置いたと きの断面図で、P点,Q点は底面における位置,a~eは高 さを示している。なお,目は,容器のふちからのぞいた ときに、ちょうどP点が見える位置から動かさずに実験 を行った。 aの高さまで水を入れたとき,ちょうどQ点が見 えた。 eの高さまで水を入れたとき,小物体は見えなかっ た。そこで、小物体の頂点が見えるまで糸を少しずつ引き上げた。 目の位置 d C b a 小物体 PQ 点点 II

英語わからないので教えてくださいお願いします

がの敵丸の①こ④の( )内の語を. それぞれ1 語で適する形に書きかえなさい。 1 (4上X 4) Mariko has two cats。 One is ①(cal) "White_because she is a white cat The ther's name isS Gray. He is ②(big) than White. Both White and Gray have lved 上 Mariko's house for five years. She tikes ③(play) with them. ④(She) parents love |ゆ em, (00. ③ ) 次の対話文の| |内の語を並べかえて, 英文を完成しな の (4点x< さい。ただし, 文の最初にくる語も小文字で始まっています。 ⑪) H 4 : How large ijS your city? llarge is it as as| Hmeii 4 : You joined the tennis club, didnt you? ⑬ 玉・Yes. |is playing interesting tennis 半 hat do you call this country in Enghish? cal こ

赤印お願いします

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この問題の 問題集のタイトル わかる方いませんか？ よろしくお願いします！

et 10 田 Have you ever drunk black tea? We call bljack tea Aoc7o in Japanese. When ethis word is written in oz太, we think it means red" tea. You may say. "When Isee たoco in my cup、 it 1ooks り a ).” But people who speak English do not call tt red" tea、They call it black tea" or Just “tea'. People see the same tea and they give it different color names in different languages. So it is very mteresting to study a foreign ]anguage, and it 8 important to learn that people have different ideas about the same thing. Ar there any other examples of othis? What is the color of the sun? Japanese children use a red crayon* when they draw the sun、( 2 ) Japanese people think eit is red. But American children use a yellow crayon for the sun. So some people think that it is red, but other people think that it is yellow. Japanese children use yellow for the moon. Do children in other countries also use yellow for the moon? In some places children use white.

3番を教えてください。答えは2枚目の写真です。

商 以 の各設問に関して. 情報提示の きせなさい。 番を 内 ⑰ ecause of chlorophyI\一 a green substance* inside the chloroplast『 that transfers MR from jightint6 a form the plant can use 一 leaves are usually green. *substance 物質 *chloroplast 葉緑体 *transfer AintoB A をBに転送する *chlorophyll 9 みかがり火 *incredibly 信じられないゅ <《隊 3 *radiate .… …を放出する body they can cause cancer which can be deadly. Substances that send out energy nucle* of their atoms give of gamma rays. These are known as radioactive*