Trình bày phương pháp nhận biết 3 dung dịch sau NaOH NaCl Ba(OH)2 Gấp

Mn giúp mik trc 9h vs ạ Cám ơn mn nhiều

Tìm x, biết : a, |x + 2| = x b, |x - 1|- 2x = $\frac{1}{2}$ c, |0,5x - 2|-|x + 3| = 0 d, |x - 3,5|+|x + 1,3| = 0 GIÚP MÌNH VỚI ! ĐANG CẦN GẤP

Giúp mik vs các bạn , nhanh nhé

Giải đa0sp câu này giúp em dc ko ạ Cần Câu trả lời đúng ạ 5sao

Viết một đoạn văn miêu tả chủ đề tự chọn có sử dụng từ láy toàn bộ và từ láy bộ phận rồi phân loại chúng

I. Fill each of the numbered blanks in the following passage with a suitable word. Elizabeth Blackwell was born in England in 1821, and ....................... (1) to America when she was ten years old. She was the first woman to ....................... (2) a medical degree. Getting that ....................... (3)was not easy at all. She applied to twenty nine medical schools and was always refused ....................... (4) at that time, only men was admitted to ....................... (5) schools. But she never gave ....................... (6). She studied privately with a doctor ....................... (7) three years. Then she ....................... (8) to all the medical schools again. This ....................... (9), in 1847, the medical institute of Geneva New York ....................... (10) her. However, ....................... (11) Elizabeth began attending classes, the students often treated her unkindly. Also, at first she was even stopped ....................... (12) some of the classrooms demonstrations. Nevertheless, she ....................... (13) stepped back. In 1853, after further study, Elizabeth Blackwell opened the New York institute ....................... (14) women and children. Later, she added medical college for women ....................... (15) that they could also become doctors.

Giúp mình với Mình làm phần a r

Rút gọn biểu thức sau $\frac{x-1}{x-2\sqrt{x}+1}$ +$\frac{\sqrt{x}+1}{x-1}$

7. It is a/an .................................. place to hold a picnic because it is too far from the road. CONVENIENCE 8. Encouraging children to eat and drink ........................... is very important. HEALTH 9. For the Muong, rice is also the main ......................................... crop. AGRICULTURE 10. Vietnam is a country of tremendous .............................. with 54 ethnic groups. DIVERSE 15. They live more ................................... than their friends. HAPPY 16. The cattle provide most of our needs: dairy ................., meat and clothing. PRODUCE 17. The firefighters were praised for their ........................ and devotion to duty. BRAVE 18. Some of my ...................................................... live in the countryside. RELATE 19. The government carried out a programme to ............... . the health services in remote and rural areas.MODERN 20. Muong people are ............................... more closely related to the Tai people. CULTURE 21. Is the ............................... of the stilt house on the side? ENTER 22 The ................................. of people in Vietnam belong to the Kinh people. MAJOR 23. Do the Cham people live in the ........................... provinces of the country? SOUTH 24. People seem to have lost their .................................... in boating on small rivers. ENJOY 25. Visually the house is very pleasing, but it’s ........................................... COMFORT 26. Villages and towns are not as densely .................................... as cities. POPULATE 27. Festivals characterize customs and ......................... of a community. BELIEVE 28. The Giay practice rice ............................................. in submerged fields. CULTIVATE 29. The population of Vietnam contains a rich ................................ of ethnic groups. DIVERSE 30. The communal house is usually used for village ......................................... FESTIVAL 31. His ...................................... to the Internet is taking over his life. ADDICT 32. Who lives more happily, ................................... or city dwellers? NOMADIC