Mình chỉ cần đáp án thui nhé, mình sẽ cho ctlhn :3 1. Hòa tan 5 gam muối ăn vào 195 gam nước. Tính nồng độ phần trăm của dung dịch thu được A. 0,25% B. 2,5% C. 3,9% D. 2,56% 2. Chất nào sau đây là bazơ không tan A. KOH B. Fe(OH)3 C. Ba(OH)2 D. Ca(OH)2 3. Khi đốt nóng, oxi tác dụng với đơn chất nào sau đây thu được oxit bazơ ? A . Cacbon B. Photpho C. Sắt D. Lưu huỳnh 4. Chất nào sau đây là axit? A. NaOH. B. KHSO4. C. NaCl. D. HNO3. 5. Đốt cháy hoàn toàn 5,6 lít CH4 (đktc) thì thể tích không khí cần dùng là: A. 56 lít B. 28 lít C. 11,2 lít D. 0,56 lít

each generation has their own view on table........, and they sometimes conflict each other. A instructions B manners C methods D ways nhớ giải thích

giúp em với ạ. bài này em làm bị sai nhiều quá ạ

1)Tính a) 12^8 x 9^12 b)45^10 x 5^3 c)(5^4 - 5^30)^3/125^5

Vẽ anime Yc : full line , màu chì nhe <3 đẹp vào ko là xiên Nl : họa vắng quá UwU

Cho mình hỏi câu d tìm Min, Max mình làm kết quả đúng chưa ạ

she ( wear)______________________ a red pullover and black jeans to day Alan ( get up ).............. at seven o'clock every morning Tuan ( have )............................... a shower before breakfast my father often ( drive)........... to the office he ( not/work)................ because he is old why ( you/learn).......................english this year? I ( live).............with my sister for a month because she í pregnant and I can help her

Write the correct form of the word in brackets Exercise 1: 1. The price of clay, supplies and equipment is a small percentage of the total cost to ____ pottery. (PRODUCT) 2. The second collection was more decorative, inspired by _____ and pattern. (EMBROIDER) 3. I’d like to thank everyone for helping to make this day ____ for us. (MEMORY) 4. These products are called lacquerware because they are ____ covered with lacquer. (DECORATE) 5. These fully ____ craftsmen amazed me with their product (TALENT) 6. These _____ live mainly on farming and marking incenses when crops are over. (VILLAGE) 7. The place has a rich long - lasting ____ (HISTORY) 8. These baskets are ______ from strips of bamboo. (WEAVE) 9. We are impressed by a wide _____ of lacquerwares in the showroom. (VARY) 10. My grandfather has devoted himself to many _____ events in our community. (CULTURE) 11. Do you know that ____ have to follow 15 stages to make a conical hat? (ART) 12. There are a lot of silk _____ such as scarves, ties and dresses in our shop. (PRODUCE) 13. They showed me a marble sculpture which was _____ made by hand. (SKILL) 14. Obviously, our handicrafts are in _____ with those of other villages. (COMPETE)

2, tìm x : căn (x+1) tất cả mũ 2 = 2x ; căn x mũ 2 - 6x +9 = 1

Calli: Sock Tone xanh dương nka