学年

教科

質問の種類

理科 中学生

3年生の一学期期末テストで出た問題です!(1)(2)(3)は分かるのですが、(4)は塩酸Bを50cm³にすることと、必要な水酸化ナトリウム水溶液Aは5:3ということは分かっています!(5)はほとんど分からないです。(6)もほとんど分かりません。一応答えが(4)3cm³(5)... 続きを読む

ナトリウム水溶液 に答えなさい。 アルカリ 青色リトマス紙 OFF 陰極 鋼が図した電極の質量をはかったところ、実験前と比べ て1.8g増加していた。 電気分解された塩化銅の質量は何gか答えなさい。 ただし、 電気分解で生じた 銅はすべて電極に付着したものとし、 銅原子と塩素原子の質量の比は95 とする。 (C) 答えなさい。 HCI さんせい HNGOH HNGOH 8 うすい塩酸(塩酸 A) 100cm に BTB溶液を数滴加えると水溶液が黄色になった。 そこに、 うすい水酸化ナト リウム水溶液 (水酸化ナトリウム水溶液A) を10cmずつ加え、加えた水酸化ナトリウム水溶液の体積とその ときの水溶液の色を表にまとめた。 次の各問いに答えなさい。 電池を何とい ろ紙 加えた水酸化ナトリウム 水溶液Aの体積(cm 3 ) 0 10 20 20 30 40 50 (60 70 80 90 100 である。 水溶液の色 黄色 黄色 黄色 黄色 黄色 黄色 50 緑色 青色 青色 青色 青色 4500 えな」 60 (1) この実験で起こった反応のようすを式で示しなさい。 300 赤 410 44599 はどれ 60÷100=X:75 100%=45 (2) (3) 75cm 3 の塩酸 A を完全に中和するために必要な水酸化ナトリウムAは何cmか答えなさい。 100cm 3 の塩酸 A を完全に中和するために必要な水酸化ナトリウム水溶液 Aは何cm 3 か答えなさい。 50 (4) 塩酸Aに精製水を加えて濃度を0.5倍にした塩酸 B を用意した。 また、 水酸化ナトリウム水溶液 Aに 水酸化ナトリウムを加え、濃度を5倍にした水酸化ナトリウム水溶液を用意した。 50cm 3 の塩酸Bを 完全に中和するために必要な水酸化ナトリウム水溶液Bは何cm か答えなさい。 (5) 50cm3の塩酸 Aと50cm 3 の塩酸 B を混ぜ合わせ 100cmの塩酸Cを作成した。 100cm の塩酸Cを 完全に中和するために必要な水酸化ナトリウム水溶液 Aの体積は何cm 3 か答えなさい。 (6) 100cm 3 の塩酸C に BTB溶液を数滴加えたところ、 水溶液が黄色になった。 そこに水酸化ナトリウム B 水溶液を60cm加えたところ、 水溶液の色が青色になった。 この水溶液を完全に中和するために必要 な塩酸 A は何cmか答えな kicoo 100 0.5 PNG& NNGQH THINGSH HNGOH MNax

解決済み 回答数: 1
英語 中学生

問6の答えを教えてください、、。お願いします🙇‍♀️🙇‍♀️

26 Unit 4 長文問題≫ もしも時間を戻せたら? ) able to change the past? If you 1 Do you ever wish you (1)( had (2) that ability, maybe you would spend more time practicing soccer, learn the instrument that you always wanted to play, study harder for that big test, or try to save more money for the future. 2 What would you do if you had the ability to turn back the clock? This was a question which Mr. Woodall, a high school teacher in Philadelphia, asked his students. Mr. Woodall wanted to know what was important to his students but was pleasantly surprised to see the results. I think their answers will be very interesting to you, too. 3 which were connected to Mr. Woodall expected to see answers (v)) the own good of the students, but (3) he was wrong. The majority of the which he received from his students were for the good of answers (5) others. 4 A very common answer he found was, "If I could turn back the clock, I would take back some things that I said to a friend." Apparently, many of the students regretted saying something (5)( ) hurt their friends and wanted to change that. Surprisingly, close to 40% of the students answered this way. 5 Another common answer was about pets. "(6) If I were able to turn back the clock, I would spend more time with my dog," or "(I would be nicer to my cat," were some common answers. Almost 25% of the students missed their pet very much and wanted to show more love. These pets included dogs, cats, birds, rabbits and other animals. 6 There were other answers about reading more books, studying harder, or eating less junk food. However, Mr. Woodall was quite impressed with his students and their concern for others. He decided to share all of the answers with his students, and the students enjoyed hearing the different answers. Mr. Woodall decided to try this activity with his students every year. By asking, he felt he would learn a lot about his students. Target ①関係代名詞 ②仮定法・間接疑問 turn back (時計を) 巻き戻す 問1 (1) (C pleasantly 心地よく good 問2 問3 い。 問 expected to 〜するだろうと思う majority t F (4 take back 取り消す apparently どうやら~らしい close to ~近く be nice to 〜にやさしい junk food ジャンクフード concern for 〜への気遣い、配慮

解決済み 回答数: 1
英語 中学生

なぜ②はウなんですか?

次は,高校生の真希(Maki) と, クラスメートの一郎 (Ichiro) 夕紀 (Yuki), そして,ベー コー先生 (Mr. Baker) との授業中の会話である。 英文を読んで 1,2の問いに答えなさい。 barbecue=バーベキュー grandparents = 12 (注) volunteer= ボランティア chance = Mr. Baker Hello, everyone. Summer vacation is coming soon. What are you going to do during the summer vacation? Maki, please tell us about your plans. : 1 I'm in the basketball club, and I like playing basketball and talking with my club members very much. We'll have more time for club activities during summer vacation, so I'll do my best to become a better player. That's nice. Ichiro, how about you? 2 First, I'm going to stay with a family in Canada for two weeks. I've never been abroad, so I'm very excited. Next, I'm going to work as a volunteer in the summer festival. I did it last year, and it was a lot of fun. Third, I'll work This year, I want to enjoy talking with people of different ages. hard in the science club. I'll be I'm very interested in all of these things. busier than last summer, but I'm sure I can learn more through these experiences. Yuki, what will you do this summer? Good. I can't usually do that because I'm very busy with school activities every day. During the vacation. I'll have a barbecue with my family at home. I'm also going to visit my grandparents with my family. They'll show us how to fish in the sea. From these experiences. I hope I'll learn a lot of things. Mr. Baker: Great. Thank you, everyone. I think you should enjoy events that you can take part in only during summer vacation. Summer vacation is a good chance for you to spend a lot of time with your family, friends, or many other people. I hope you'll have a lot of wonderful experiences this summer. Maki Mr. Baker Ichiro Mr. Baker Yuki : f

解決済み 回答数: 1