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理科 中学生

答えはqを1.4加えるです。 考え方を教えてください。

②酸やアルカリの性質、中和について調べる実験を行いました。 問1~ 問6に答えなさい。 うすい塩酸(P液とする) とうすい水酸化ナトリウム水溶液 (Q液とする) を用意して次の実験1 実験2を行った。 実験1 (1) 食塩水 (塩化ナトリウム水溶液)でしめらせた ろとpH試験紙を図1のようにスライドガラ スに置き 両端を金属製のクリップでとめて電 源装置につないだ。 電源装置 (2) P誰をしみこませた糸を pH試験紙の中央に 置き 電圧を加えてpH試験紙の色の変化を観 察した。 [ろ紙 pH試験紙 (3)(2)の液をQ液に変えて(1)から同様の操作を スライド ガラス 糸 行った。 図 1 実験2 (1) P液を10cmずつ入れた試験管A~E を用意し、これらの試験管にこまごめビペットでQ液 試験管には2cm 試験管B には4cm 試験管Cには6cm 試験管Dには8cm²試験 管Eには10cm というように量を変えて入れ、よく混ぜた。 (2) 試験管A~B それぞれにマグネシウム 0.30gを加えたところ、試験管ADでは気体が発生 したが、試験管E では気体が発生しなかった。 (3) 試験管A~Dで気体が発生しなくなった後、 マグネシウムが残っている試験管からマグネシウ ムを取り出し、その質量を測定した。 下の表は、試験管A~E に入れたP液, Q液それぞれの 体積と残ったマグネシウムの質量をまとめたものである。 なお、 試験管A のマグネシウムはすべ て溶けてなくなっていた。 A B C D E P液の体積〔cm²)] 10 10 10 10 10 Q液の体積[cm] 2 4 6 8 10 残ったマグネシウムの質量[g] 0.00 0.06 0.16 0.26 0.30 -10-

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英語 中学生

いの答えと考え方を教えてください。

5 10 15 20 25 30 The Olympics were held in Tokyo in 1964. A few years ago before the Olympics, Japan had a big problem. It was a problem of communication. Many foreign people didn't visit Japan, and we had only, Japanese signs. For example, words like "i" or "" were on toilet doors. These signs were not understood by many foreign people. Japanese people at that time needed to make signs in many different languages for foreign people. But when they put many words on one sign, the "letters became too small. They could not easily read the sign. They had to think of ) signs for foreign people. Mr. Masaru Katsumi, a leader of a design team for the Olympics, had a great idea. everyone /to/ was easy / thought / understand he forit pictures. He wanted to make picture signs. These signs are called *pictograms and are used in many places now. Picture 1 Picture 2 Picture 3 Look at these pictures. Picture 1 shows a shower. Picture 2, shows a toilet. Picture 3 shows a restaurant. Foreign people can easily understand what each picture shows. They had to make pictograms which everyone could understand without any trouble. When they started to make them, one of the pictograms was a shower. Many Japanese people didn't know about showers at that time and didn't have one at home. One of the designers didn't even know the word "shower." One officer had to explain how to use it with a photo of a shower. The designer made the pictograms through the officer's words. With a lot of trouble and hard work, twelve designers needed three months and made pictograms for the Olympics. When the last pictogram was finished, Mr. Katsumi said to all the designers, "You did a great job, but this work is not for us. We did it for all Japanese people. Please write your names on this paper." The paper said that they'd like to give up the *copyright to the pictograms. They wrote their names on the paper. They gave up the copyright. One of the designers said, "Mr. Katsumi hopes that many people in many places will use the pictograms in the future. Money from the copyright is not important to Mr. Katsumi. He is proud that he is one of the members who worked for the Tokyo Olympics." In 2020, we are going to have the Olympics in Tokyo. Our life will change a lot. What kinds of new signs or pictograms will we see around us? (E) letter pictogram ピクトグラム(絵文字) designer www. デザイナー officer 役人 copyright 著作権

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