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letuyen1999
2 năm trước
1) Viết PTHH chứng minh lưu huỳnh có tính oxi hóa và tính khử. 2) Viết PTHH khi cho lưu huỳnh tác dụng với: Fe, Hg, O2, F2, H2. Xác định vai trò của lưu huỳnh trong các phản ứng trên.
Thích Trả lời Chia sẻ

Các câu hỏi liên quan

Trả lời câu hỏi theo gợi ý 1.Were you a student 2 years ago?-Yes,..................................... 2.Was he a doctor two years ago?No,......................................... 3.Were they farmers last year?No,.............................................. 4.Were Lan and Ba nurses last year?-Yes,................................. 5.Was it cold yesterday?Yes,......................................................... 6.Was he a pupipl last week?Yes,................................................. 7.Was thís hat new yesterday?-No,.............................................. 8.Were your parents teacchers two years ago?No,............................... 9.Was he a mechanic last Monday?Yes,...................................... 10.Was he an engineer yesterday?No,........................................ 11.Was it hot last week?-Yes,........................................................ 12.Were the windows open last Monday?Yes,........................... 13.Were you a teacher two years ago?Yes,................................ 14.Was Nam late yesterday?No,.................................................. 15.Was he unhappy last Tueday?No,.......................................... 16.Was you in NHa Trang two years ago?No,............................ 17.Did bBa buy the cap yesterday?Yes,...................................... 18.Did you eat a lot of fish yesterday?No,.................................. 19.Did Her aunt take her to see Cham temple?Yes,............................... 20.Did Tuan heve a new bike yesterday?No,.............................. 21.Did she buy a new ruler yesterday?No,................................. 22.Did phuong return to HaNoi yesterday?Yes,....................... 23.Did you think the food was relicious ?Yes,............................ 24.Did they buy that house last year?No,................................... 25.Did she go to school yesterday?No,....................................... 26.Did that boy have some eggs last night?No,......................... 27.Did Mr tuan deliver the speech yesterday?Yes,..................... 28.Did you clean the floor everyday ?yes,.................................... 29.Did you mother buy this dress last morning?No,................................... 30.Did she her exercise two hours?No,........................................ 31.Did that boy steal my bike lastnight?No,................................ 32.Did lan make my new dress yesterday?Yes,........................... 33.Did she come to France 2 years ago?No,................................ giúp tui zới hơi khó :))

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