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Questions in Grade Sekolah-menengah-atas
[Terjawab] 1. The reaction of calcium hydride with water can be used to prepare small quantities of hydrogen gas, as is done to fill weather-observation balloons.2.CaH2(s) + H2O(1) Ca(OH)2(s) + H2(g) (not balanced)(a) How many grams of H2(g) result from the reac-tion of 127 g CaH2 with an excess of water?(b) How many grams of water are consumed in the reaction of 56.2 g CaH2?(c) What mass of CaH2(s) must react with an excess of water to produce 8.12 × 1024 molecules of H₂?A side reaction in the manufacture of rayon from wood pulp is 3 CS2 + 6 NaOH→ 2 Na2CS3 + Na2CO3 + 3 H2OHow many grams of Na2CS3 are produced in the reac-tion of 92.5 mL of liquid CS2 (d = 1.26 g/mL) and 2.78 mol NaOH?3. Titanium tetrachloride, TiCl, is prepared by the reac-tion below.3 TiO2(s) + 4 C(s) + 6 Cl₂(g) 3 TiCl4(g) + 2 CO2(g) + 2 CO(g)What is the maximum mass of TiCl, that can be obtained from 35 g TiO2, 45 g Cl₂, and 11 g C?4. In the reaction shown, 100.0 g C6H11OH yielded 64.0 g C6H10. (a) What is the theoretical yield of the reaction?(b) What is the percent yield? (c) What mass ofC6H11OH would produce 100.0 g C6H10 if the percent yield is that determined in part (b)? C6H11OH→ C6H10 + H2O5. Azobenzene, an intermediate in the manufacture of dyes, can be prepared from nitrobenzene by reaction with triethylene glycol in the presence of Zn and KOH. In one reaction, 0.10 L of nitrobenzene (d 1.20 g/mL) and 0.30 L of triethylene glycol (d 1.12 g/mL) yields 55 g azobenzene. What are the (a) theoretical yield, (b) actual yield, and (c) percent yield of this reaction? 2 C6H5NO2 + 4 C6H14O4 nitrobenzene triethylene glycol Zn KOH (C6H5N)2+4C6H12O4+4 H₂O azobenzene
[Terjawab] 17. Salah satu bacaan haram wakaf adalah Jyang yang terdapat dalam وَقَالَتِ النَّصَارَى Lafal Al-Qur'an Surah a. al-Maidah ayat 31 b. at-Taubah ayat 30 c. al-'Ashr ayat 2 d. al-Maun ayat
[Terjawab] 2. Fondasi bangunan negara adala a. hukum b. dasar negara c. konvensi d. undang-undang dasar
[Terjawab] Dua buah muatan listrik masing masing +80c dan -40c menimbulkan gaya tarik menarik sebesar 72000 N. Berapakah jarak kedua muatan tersebut?
[Terjawab] Text 4 Hello, my friends. As a new student, I would like to talk about myself so we could know each other better. I am Safira Indah, and you can call me Indah. I'm 13 years old. I had been living in Jakarta before I moved to Surakarta. I moved here two weeks ago because my father had to work in Surakarta. Now I live in Banjarsari with my parents and my little sister. I chose to study here because my uncle in Jebres told me that this is one of the best schools in Surakarta. I think it is a good chance to learn many things here with all of you. Activity 4 Knowledge Why Do People Shake Hands When Introducing ? The handshake may have originated in prehistory as a demonstration of peaceful intent, since it shows that the hand holds no weapon. Another possibility is that it originated as a symbolic gesture of mutual commitment to an oath or promise: two hands clasping each other represents the sealing of a bond. Answer the questions below based on the texts on Activity 3! 1. What are the texts about? Answer: 2. Where is Catherine from? Answer: 3. What does Catherine do to spend time? 4. Answer. Answer: What is the full name of Yoga? 5. Where does Yoga live now? Answer: 6. Good morning all, allow me to introduce myself. 7. 8. What kind of expression is it? Answer: When was Faiz born? Answer: Who is Dadang Kurnia? Answer: 9. How old is Indah? Answer: 10. With whom does Indah live? Answer: Bahasa Inggris VII SMP/MTs Semester Gasal (Kurikulum Merdeka)
[Terjawab] DUA LINGKARAN BESAR DAN KELCIL MEMILIKI JUMLAH PANJANG JARI2 15CM. KELILING LINGKARAN BESAR YAITU P CM LEBIH BESAR DARI KELILING LINGKARA KECIL. BILA DI MISALKAN P MERUPAKAN NOMOR URUT SURAT ANNISA DI AL QURAN HITUNGLAH BEDA ATAU SELISIH LUAS LINGKARAN KECIL DAN LINGKARAN BESAR
[Terjawab] jika x = 8 maka y akan memenuhi persamaan linear dua variabel 5x - 4y = 20 adalah
[Terjawab] Sejarah merupakan ilmu yang mempelajari peristiwa masa lampau. Sejarah terikat dengan ruang dan waktu. Sejarah mempelajari peristiwa manusia yang telah terjadi dengan batasan ruang dan dalam periode waktu tertentu. Dalam penulisan sejarah, peristiwa yang dikisahkan harus runtut dan tidak melompat-lompat. Bagaimana keterkaitan sejarah dalam konsep ruang dan waktu? Jelaskan!
[Terjawab] 1. who was searching for agenuine frincess to mary? answer: 2. what happened one stormy night at the princess castle? answer: 3. how did the queen test the girls claims? answer: 5. what wah hidden beaneath the mattres? answer: 6. what tesson dose the tale of "the true princess" impart? answer:
[Terjawab] Ibu Ani meminjam uang di bank sebesar 5 juta dengan diskonto 12 persen dalam jangka waktu 1 tahun, tentukan besar uang yang di terima ibu Ani
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