How? 😭

equation for the complete combustion of methane iS: CH4⑧+20(8) っCOz(⑧+2Hz0⑧@ 0 of methane Were completely bumed in 8.00g of oxygen (an exCeSS) to produce 4.40g dioxide、What mass of oxygen is left unreacted? 1:C=12:O=16)

回答の下線部の5/4がどうして過マンガン酸カリウムとO2を比べているのかがよく分かりません、 教えてもらいたいです

ptを大んで、 s 思いmo に が 主要玖恒(GOD。 chem。 の 氷要 Oxygen qa 要とされる酸素 mand) は の量でぁ. る。copo導 滴定するこ リウムの重が求められる 思における過マンガン酸イオンお よびシュゥ酸イオンの反

英語のできる方どうか英文を作ってください😭🙏 分かる文だけでも構いません。 かんとともこは日本で初めての国境なき医師団となりました。 教科書には、酸素吸入をしていた5歳の子の酸素を止めました。 なぜなら、次に来るかもしれない助かる見込みのある人のために酸素をとっておくとい... Read More

下線部(1)(2)を訳して下さい。

The Amazon Basin is a very large area of South America covered by rainforests. The Amazon Basin has plenty of iron ore, gold, oil and natural 92. Its many rivers may be dammed to produce electric power. (] ) Because_of itS great size and rich resQurceSs soOme people want to cut down the rainforests to develop the natural resources and to provide fand for homes. ( A ) Thousands of different kinds of animals live in the Amazon Basin. In fact, in terms of animal life, the Amazon Basin is one of the richest areas in the world.The Amazon's animals depend on the trees of the rainforests for food and shelter. Cutting them down wil probably kill many of the aninals that live there. Besides, the plants in the Amazon Basin give off large amounts of oxygen. Cutting down the rainforests may make the amount of oxygen less in the air. This change in the air will probably cause problems in other parts of the world. (2) No _one can be sure what the rainforests of the Amazon will be like in fifty to one hundred years. The fate of the rainforests may depend on( B )thepeople of South America decide to use this rich land. (洲) The Amazon Basin アマゾン川流域 rainforest 誠肌本 iron ore 鉄和 dam にダムを造る electric 電気の resource 資源 provide 供給する 0 ン この点で shelter 隠れ場所 amount 量 cause 引き起こす

問23,25,28,30解答解説お願いします

23. She had to refer to the manual (A. how to BE. so that C. whateVer D. as to) she could take pictures with the new carmera. レ 24。 (A、Deafness which 。 B. Deafness C. Thereis deafness D、It is deafness) is a term for the partial gy complefe inability to hear. 2 25. (4. When well fitted B. Wellfittedwhen C. Well-fitted_whether D. we fitted when)、glasses can correct most sight defects 5/n healthy eyeSs. ン 26. For human beings and al】 other 0 what B. which C. ony D. i0) js oxygen 1 makes life on earth possible. 有 27. Long (A. expose 計 exposed C. exposition Dexposure) to air 本 間h wiJ cause'nails tornst and rust holes to form in tin roofS. 28, 7you(4. abandon B. absorb C. accuse .D.accomplish) someone ot テ 5 ] dojng something wrong or djshonest, you say or tell them that you believe that or thing is 6 E

問24.26.27.29解答解説お願いします！

23、She Te t: C. whatever ト、 ad to D. as to) SSfec to the nanuan (人 HOW 1 BS OfBaf斉he革 i She could take Pictures with the new camera 24、(A、 6 Deafness which B.。 Deafness 。 C. There is deafness D、fr : ! deafness) is a term for the partial 6P cormplete inabiity to near. wど 人 (4. Whnen we tteg B. Well fitted when でC. ve_fitted_whether り. 7 we 石rted when), glasses SS correct most sight defects 1 healthy eyes. 26. For numan pbeings and a1】 other animals (A. what BE. which C. ony わり. jS oxygen jaf makes ife on earth possible. 27. ong (4. expose B. exposed (C exposition Dexposure) to Se 0 wiJ cause'nails toyrGst and rust holes to form in tn rootS. 28. you(4. abandon B.absorb C.accuse .D.accomplish) someone ot テ gojmg sornefning wrong or dishonest, you say or tell them that you believe hat のey ggg を ii hh 29. AA(4. prevjous precjous C. primary D. private) event or thing 1s 8 \ oe 訪at appened or exjsted before the one that you are talking about.

５番と６番の答えが、エとアなんですが、なぜそうなるのか教えてください🙏 写真小さくてすみません…🙇‍♀️

昌和 A 空所に入る語句として最も適欧なものを選び、記生で守えーー 1 Matthew (一うback。 we wi know what realiy bappened there. 7.eome omes か came ェ. will come 2. My father sat( )hisheadin his hands. / Acd on り down に (se meessary that he( )becarefulwhile oro5eing the etreet. 。 could would should エmight 4 7his pictureis( 。 )onemilion dolars. し7しWorth worthy り. wealth ェ. wealthy going to have myphotograph( )tomorrow 7.take jo take taking ェ.taken 6.“Where is Yumiko? Did she go home?" “Here's her bag. She ( ) have gone home." 7.cannot 「イ -英ust not can ェ.must AU等7ILBB) ke police search of the whole area, there were no clues to her whereat (たDespite Though In spite ェ. Instead 8. He thought she had suffered a memoryloss( )stress. へ 7. due イイbecause (due to ェ. because from 9.But( )theincident made her a best-seling noyelist. 7.irony ironic ironical onically 10. Plants restore to the air whatever( ) animals remove- what is called oxygen” 7. breath breathe .breathbing r.breathed 本

②と③教えてください。お願いします。

②と③を教えてください！

He started to wonder how the sun makes it possible to burn in space where there is no oxygen. という文は文法的にあってますか？違うところがあったら教えていただきたいです！