この問題について質問です。 画像では、溶ける硫酸銅五水和物の質量をx(ｇ)とすると、そのうち硫酸銅の部分が160/250x(ｇ)、水の部分が90/250(ｇ)となっているのですが、なぜこのような式で求まるのでしょうか？

例定 硫酸銅(II)五水和物CuSO4･5H2O は、 60℃の水100gに何g溶けるか。 例 整数値で答えよ。ただし, 硫酸銅(IⅡI)CuSO4は60℃の水100gに40g (H=1.0,0=16, S = 32, Cu=64) 溶けるとする。 例題1 水和水をもつ物質の溶解量 解 指針 CuSO4・5H2Oの質量をx[g] として, CuSO4 の質量をxを用いて表す。 溶ける CuSO4・5H2Oの質量をx [g] 160 250 とすると,そのうちCuSOが CuSO4 160 90 x [g] H2Oが -*[g]. 250 250 飽和溶液中の溶質と溶液の質量の比は一定なので, 160 溶質の質量 [g] 飽和溶液の質量 [g] = -x [g] 250 100g+x[g] = 40g 100g+40g x x ≒ 81g 90 250 5H2O 答 81g

答えと解説教えてください🙏

4. 1) the Rosetta Stone while I was staying in London. (1) have seen have been seeing saw was seen

日本語訳に直してほしいです！

1) Kate left her umbrella in the train. 2) This rose smells sweet.

この問題に答える時、AかつB＝やAかつBかつC＝などと書かなければ間違いになりますか。それとも三角？

! 43つの集合A={1,2,3,4},B={2, 3,5}, C={1,2,6 について,次の集合を求めよ。 (1) ANB, AUB (2) (A∩B)UC, (AUB)nc (3) ANBNC, AUBUC ポイント⑩ 共通部分 どの集合にも属する要素全体の集合。 ポイント② 集合 少なくとも1つの集合に属する要素全体の集合。 (0212) CROSENGO (

(2.5.7)の訳し方がわかりません。 2 私たちの少ない時間を測定することに成功し宇宙の偉大な神秘を思い出させられた。 5 時間と変化は漏れた（リンクは結ぶとも訳せるのですか？） 7 私たちはある日、暗と光とそれぞれ名付けた としか訳せません

2 次の英文を読んで、以下の問いに答えなさい。 If you can read a clock, you can know the time of day. But (n)(knows/time itself / what is / no one / .) We cannot see it. We cannot touch it. We cannot hear it. We Ense tiniest parts of time, time remains one of the great mysteries of the universe. know it only by the way we mark its passing. (2)For all our success in measuring the 測定 One way of thinking about time is to imagine a World without time. There could be no movement, because time and movement cannot (3)(separate). A world without time could exist only (4)as long as there were no changes. (5)For time and change are linked. When something changes, you know time has passed. In the real world, changes never stop. Some changes happen only once in a while, like an eclipse of the moon. (A) 日 happen repeatedly, like the rising and setting of the Sun. People have always noted natural events that repeat themselves. When people began to count some events, they began to measure time. 彼ら自身 In early human history, the only changes that seemed (6)(repeat) themselves evenly were the movements of objects in the sky. The most easily seen result of these movements was the difference (B) light and darkness. The sun rose in the eastern sky, producing (C). It moved overhead and sank in the

英作文の添削希望です！準二級の問題です。どなたかよろしくお願いします🤲

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どうしてこのような答えになるのかがわからないです。 なぜ選択肢イになるのか教えてくれる方、よろしくお願いします🙌🙌

W 111 W 111 (4) This library book (i) borrowed so many times that it is in a bad condition. 7. has (7.) has been (5) These rose bushes have to ( . had I. had been ) from heavy snow. We have lots of snow

数Ⅱ　円と直線、2つの円 写真の問題がわかりません ⑵は解説を見ながら真似して解いたらなんとか解答は合ったのですが、どうして解説のようになっているのかが分からないままです 余裕あれば問題2つを解説してほしいのですが、⑴だけでも大丈夫です、よろしくお願いします🙇‍♀ 2枚目... Read More

380 次の点を通り, 与えられた円に接する直線の方程式と、接点の 座標を求めよ。 *(1) 点(1,-2), x2+y²=1 (2) 点 (5,1), x2+y²=13 -1

写真の問題について質問があります！ 答えは○なのですが、 has visitedの部分がどうしてhas been to では無いのかが分かりません💦 学校で、 行ったことがあるのようなニュアンスはbeen toだと習ったのですが、、

3 Correct the underlined parts if necessary. Draw a circle "O" if it's correct. 1) Is your bag new? No, I have it for a year. Sonarmo 2) Emma and I are good friends. We know each other very well. 3) My father travels a lot. He has visited many countries. 4) Is Ren still studying in his room? Yes. He is studying for more than two hours. 5) Have you seen Jill lately? - Oh, yes. I have seen her three days ago. szenieud hieris pated vers new assey 21 101 1erito rose nomi beri yor niorit nose beri oy .8

至急お願いします‼️‼️ 日本語訳には直すことは出来ました！ ですが文型があまり分かりません💦 教えてくれると助かります☺️ よろしくお願いします🙇🏻‍♀️😖

3 TXTEGROSEA. 各文を日本語に直し, S, V, 0の記号を用いて文型を答えなさい。 +=+ A 1) (a) A man is standing over there. (b) I can't stand the sound. 2) (a) Bill often runs in the park. ALE JHOgniob +979wlesw) 11 (b) My mother runs a restaurant. uns a Test DI HYOE A -STOY & daom tal Joow lesi 3) (a) He lay on his bed. die MAUINS 01 HOE bruge Law 5d) slidwo (b) The little girl laid her doll on the sofa. [AB 8 ] 2319 - [ ] [ 1 1 1 ]