英語で、If a substance you see is a solid (もしあなたが目にする物質が固体ならば)という文がありました。でも、seeの動詞の後にisがどうしてこれるのかがよく分かりません

【問題英語ですみません】Q=nH の使い方がよく分かりません… どのように解いたら良いのでしょうか、問題の最後の括弧は答えです。解説よろしくお願いします🙇‍♂️

ーloG人す b 生計明 いそ(96sV To calculate the energy involved in a phase change We uSe the formula Q = nH h = quantity of heat or enerqgy involved = number of moles of substance to be considered mi Q = the amount of energy required or released when one mole of the substance changes phase at the phase change temperature Phase Change Questions: 1. Calculate the amount of energy required to convert 100 g of ice at 0.00*C to water at 0.00?C. (33.4 Iい=- らら ol 2. Calculate the amount of energy involved when 250 g of steam at 100?C is condensed to water at 100?C. (-564 3.150 kJ are required to melt 20.0 moles of a solid at itS melting temperature. Calculate the molar heat of fusion of the solid. (50 kJの (6必 1. What are the three phases Of matter ? (states of matter) 2. What is a phase change? (Chang@e of state) * Please note: 4 Dase の72796 6 p7ys/cg/7 C77796, 707 る ce/7/Cg/ C77g7706. 3. (a) What is the boiling point of water 0 (b) What is the freezing point of water の 4. (a) What happens to the temperature of water while it iS boiling ? (b) What happens to the temperature of steam while it iS condensind ? (c) What happens to the temperature of ice while it iS melting ? (d) What happens to the temperature of water while itiS freezing ?

So water is not solid, for I can't take up a pinch of it in my fingers as I can with sand. 訳をお願いします。

the less light that can pass through an object , the more solid its shadow. 和訳してください

これって違うものじゃないんですか？ 回転できなくないですか？

全ての物質に（気）や（液）、（固）を書かないといけないのですか？

彼らは生活のために兵に入らざるをえないのかもしれない。 を英訳したいんですが、 They can’t help entering the soldier for life. で合ってますか？ ～のかもしれないは英語に訳すときどうすればいいんでしょうか？