Cân bằng FeS + HNO3 + H2O -> Fe(NO3)3 + Fe2(SO4)3 + NH4NO3

giải phương trình x-3/x-2 + x-2/x+4 = 11/3

cũng là dạng rút gọn ạ câu cúi rồi 🥺 cảm ơn mọi người rất nhìuuuu💕

các từ : Tươi tốt , đánh đập,chán chê,mặt mũi,đi đứng tươi , tươi cười là từ ghép hay từ láy.Vì sao?

Giúp em bài này với mn , em cảm ơn

Cho A = căn x / căn x - 3 tìm x để giá trị tuyệt đối của A = A

Mong mn giúp mk câu này vs ah!!!

Rewrite each sentence so that it contains the word in capitals: 1. “How many people came to the party?” I asked. (HAD) …………………………………………………………………………… 2. “Don’t forget to put your name at the top of the page,” he said. (REMINDED) …………………………………………………………………………… 3. “Don’t worry about a few mistakes,” said Mary. (ADVISED) ……………………………………………………………………………. 4. “Keep an eye on your luggage, Tom” I said. (WARNED) ……………………………………………………………………………. 5. “Read the questions twice and don’t write in the margin,” my teacher said. (TOLD) ……………………………………………………………………………. 6. “Shall we go to the nightclub?” he said. (SUGGESTED) …………………………………………………………………………….. 7. “Would you mind turning the music down, Mike? Jolie said. (ASKED) ……………………………………………………………………………….. 8. “Would you like to join me for lunch?” Ann said to Laura. (INVITED) ………………………………………………………………………………. 9. “I really must leave now,” Mr. Fatt said. (INSIST) ………………………………………………………………………………. 10. “I didn’t have the money, so I didn’t buy a new TV set.” Barbara said. (WOULD) Mn cứu em vs ạ ! Trc 6h em phải nộp rồi ạ ! Em cảm ơn Hứa vote 5*+clth cho người nhanh nhất ạ

giải thích chi tiết là có hay nhất ngay

3. He spent all that money last week. He _______ so much. A. didn't need to spend B. shouldn't spend C. needn't have spent D. didn't have to spend 4. He had to work hard so that he _______ his family. A. may support B. supported C. can support D. could support 5. They have plenty of time, so they need not _______. A. be hurry B. to hurry C. hurry D. to be hurry