Grade

Subject

Type of questions

Science Junior High

化学変化(酸化と還元) 還元についてです。 (6)の問題で、還元されない理由について教えて欲しいです。 なるべく、簡単に教えてくれるとありがたいです🙏

ついて、後の問いに答えなさい。 教科書 P.47~4072-73 図1 図2 [実験1] 図1のように、黒色の酸化 銅を熱して水素の中に入れると、 試 験管の内側に液体がつき、酸化銅は 鋼になった。 [実験2] 図2のように、 酸化銅の粉 末と炭素の混合物を加熱すると、気 体が発生して石灰水が白くにごり あとに銅が残った。 〔実験3〕 空気中で燃焼させたマグネシウムリボンを、図3のように二酸化炭素の中に入れると,マグネシウ ムは燃焼し続けた。 燃焼後、集気瓶の中には白色の物質と黒色の物質があった。 (1) 実験1で起きた化学変化を化学反応式で表しなさい。 [ CuO + H2 (2) 実験1.2で, 酸化された物質は何か。 それぞれ, 物質名で答えなさい。 実験 1 [ 木 ] 実験21 (3) 実験2で、加熱を終了したらすぐに,ゴム管を目玉クリップで閉じた。 それはなぜか。 簡単に答えなさい。 1 [空気中の酸素と銅が酸化するのをふせぐため. 4)実験3で起きた化学変化を化学反応式で表しなさい。 [2Mg+H2O→2MgO+@ CEDRYS 水素 酸化銅 fere slike 1 (5) 実験2,3より,銅, 炭素, マグネシウムを酸素と結びつきやすい順に並べなさい。 fore alite & 酸化銅と炭素の混合物 REET 図3 27 HIF マグネシウム・ リボン ] →酸化マグネシウム、 ] [マグネシウム、炭素、銅 __ (6) 化マグネシウムと炭素を混合して, 図2のような装置で加熱したとき, 酸化マグネシウムは還元される か。 [ されるされない] 二酸化炭素 + H₂ zg +HeO (4点x7) ゼロ 1

Waiting Answers: 1
English Junior High

英検の過去問なんですが、答えが見つからない ので答えを教えてほしいです

(2) (1) A: Mom, I met a ( B: That's great. 1 famous (5) (6) 1 (18) Grade 4 (8) 2 次の (1) から (15) まで ( に入れるのに最も適切なものを 1,2,3,4の中から一つ選び、その番号のマーク欄をぬりつぶしなさい。 (3) A: When did the Sylvia Hotel open? B: In 1913. It's over a hundred years ( 1 many 2 quiet (4) A: Everyone is here, so we can ( B: OK. 1 visit Mary ( 1 misses day. (7) A: Your ( Ted made some friends at his new school, so he was ( thin 1 2 slow 3 glad Peter became a ( 1 member B: Thank you. 1 question Grade 4 2 next ) soccer player on the train today. 2 start 3 hard 2 bench ) to get a bird for her birthday. 2 picks 3 hopes 1 That's my dream. 3 I'll watch you. 1 Have fun. 3 Not yet. 3 tall 1 Did you make them? 3 Is it finished? Daughter: I will. 1 I'm hungry. 3 stay at home. 3 carry ) of the swimming club. ) is so beautiful! I love seeing the flowers in spring. 2 holiday 3 sound 2 ) the movie now. 3 salad 3 moved (17) Father: How was your band practice today? Son: ( ) We learned a new song. 1 I have a ticket. 3 You're right. I ( ) a bad cold today, so I couldn't have lunch with my grandmother. I was really sad. 1 kept 2 had Mother: Would you like a cupcake? Daughter: Yes, please. ( ) Mother: No, they were on sale at the supermarket. 4 thick (19) Girl: Thanks for studying with me today. Boy: ( ) I enjoyed it. 次の (16) から (20) までの会話について ( に入れるのに最も 適切なものを 1,2,3,4の中から一つ選び、その番号のマーク欄をぬりつ ぶしなさい。 (16) Girl: I love playing the piano. Boy: Do you want to be a professional pianist in the future? Girl: Yes. ( ) 4 old lazy 4 drop 2 After math. 4 No problem. (20) Daughter: Dad, shall I cut the vegetables for the salad? Father: Yes, please, but ( 4 follows He swims every 2 It's my guitar. 4 You can have one. 2 it's a fruit. 4 be careful. 4 towel 4 garden 2 It was fun. 4 It was on the radio. 4 rode 2 Will they be ready? 4 Are you late? (9) (12) Grade 4 (13) A: What can you cook? B: I like to make food from different countries. ( Italian food and Chinese food. 1 For 2 To (10) A: Did you meet the new English teacher? B: Yes, he comes ( 1 until 2 (11) A: What ( (14) 3 ) of dog do you want? B: I want a big dog because I love to go on long walks. 1 room 2 wind 3 kind (22) (15) A: Excuse me. ( B: That one is $10. 1 Where (23) After school, Chris enjoys ( listen to her funny stories. 1 talking 2 opening (24) 4級 354. 34 $18,73 Today, it will snow much ( and I will make a big snowman. 1 harder 2 hard (25) (21) 新しいくつを買ってはどうですか。 1 arplad I love riding my bike to the park, but my sister ( likes to stay at home. 1 haven't 2 doesn't Brush breakfast. 1 ) South Africa. He loves rugby. along 3 This is 10 みが 朝食を食べたら歯を磨きなさい。 (after 2 your 3 you 2番目 1 2 Why (4) 2 ( you buy 3 why 4 new shoes 2番目 4番目 1 2 5 My brother tomorrow. ) much is this T-shirt? 3 2 3 As スープをもっともらえますか。 have ( soup can 2 2 Grade 4 LI 856 次の (21) から (25) までの日本文の意味を表すように ①から⑤までを並べ の中に入れなさい。 そして、2番目と4番目にくるものの かえて 最も適切な組合せを1,2,3,4の中から一つ選び、その番号のマークを ぬりつぶしなさい。 ※ただし, ( の中では、夏のはじめにくる語も 小文字になっています。 2番目 2 over W 4 from 2番目 3 holding BEL はじ これは私の初めてのシンガポール旅行です。 (Singapore 2 my first 4 to ) with his teacher. 3 don't 2② 3 hardest 3 When ) than yesterday. 3 4 eat 5 teeth) 3 4 In 4 3 4 side ) example, (3) some more 3 (5 3 4 asking 5 trip) 5 don't) He likes to 4 isn't (4) (write 2 to 3 by 4 has 5 a report) 2番目 2 4番目 わたし あに あす 私の兄は明日までに, レポートを書かなければいけません。 4 too hard ). 4 How (51) My brother She 4 4番目 ⑤5⑤ - (3) (3) please? 4 3-0

Waiting Answers: 1
English Junior High

英語、塾まであと10分だから助けて( ¯−¯ )

13 定着 基本文③ 次の英文がなりたつように, (1) People call Ken-chan. (2) His performance made (3) Mr. Ito gave (4) Their efforts に適する語を( (he, his, him, himself) excited. (they, their, them, theirs) (we, our, us, ours) (come, keep, give, take ) に適する語を書きなさい。 a lot of homework. the city clean. 4 定着 基本文③ 次の日本文にあう英文になるように, (1) 人々の前で話すことは私を緊張させます。 in front of people (2) 多くのよいコメントがその歌手を有名にしました。 Many nice comments the singer (3) みんなが彼女をプリティ・キティと呼びます。 Everyone (4) ボランティアの活動が町を美しく保っています。 Volunteer activities the town Pretty Kitty. 内から選んで書きなさい。 □ 意味も確認しよ 5 定着 基本文 ③ 次の日本文にあう英文になるように, ( )内の語(句) を並べかえなさい。 (1) その本は彼女を作家として有名にしました。 The (famous/as/ made/book / a/writer/ her). (3) 5人の子供たちがスミス夫人をいつも忙しくしています。 (Mrs. Smith / always/ busy / children / five / keep). nervous. (2) 私は妹に誕生日ケーキを作ってあげました。(cake/a/my/made/ birthday/I/ sister). (4) その物語を読むとあなたはとても悲しくなるでしょう。 ( sad / will / the story / very/you/reading/make) .

Waiting for Answers Answers: 0
English Junior High

なるべく早く答えて欲しいです!! これの真ん中部分の和訳がわかんないんですけど、どう訳せばいいか教えてくださいm(*_ _)m 1枚目の写真だと、赤線が引いてある線と、長い黒線が引いてある部分です。2枚目の写真は、真ん中らへんのearth millions の黄色線が引いて... Read More

10 20 called trunks, w eir mouths. Elephants cannot see very well. Their eyes are on the state of their heads, so they have to move 全体 their whole body to look at things. The phants have very good hearing, but 耳 they do not all have big ears. The elephants in Africa have very big ears. They 耳 use their ears to help them cool down on hot days. Elephants in other countries do not have such big ears. 両方とも Elephants live in both Africa and Asia. They can live for about 70 years. たいていの That is a long time. Most of an elephant's life is spent eating. Elephants spend 75% of their day eating. They eat a lot of plants and trees. They do not eat other animals. Elephants also need to drink a lot of water. They drink more than 250 liters of water a day. That is like drinking more than 700 small bottles of water a day. Elephants do not like to be on their own. They travel around in groups, いつも usuall 全体 aily with about 10 other elephants. When new elephants are born, the whole group helps to look after the new baby elephants. Elephants are very lucky because other animals do not attack them. クニッ Sometimes baby elephants are attacked by lions and crocodiles. However, 26 there is a bigger problem for elephants than lions and crocodiles. The bigger ~の部分 problem is humans. Humans kill many elephants. Parts of the elephant are 価値 worth a lot of money, so people want to get these parts and sell them. KR さらに、 ゾウ People also kill 'elephants

Waiting Answers: 1