user-avatar
phananh15012001
2 năm trước
Cho 158gam KMnO4 có lẫn 20% tạp chất. Phản ứng với lượng dư dung dịch HCl với H=60%. Sau phản ứng thứ được V lít khí Cl2(đktc). Giá trị cuảV là bao nhiêu Cho mk xin cách giải vs
Thích Trả lời Chia sẻ

Các câu hỏi liên quan

1. What........ you (do)............ next Sunday? 2. He usually..................... (jog) in the morning. 3. My brother................... (watch) TV at the moment. 4. Hoa............................ (not go) fishing in the winter. 5. Her sister........................... (skip) now. 6. There............................ (not be) any water in the bottle. 7. I can.................... (speak) English. 8. She....................... (visit) her aunt next week. 9. At the moment, the children..................... (play) soccer in the garden. 10. She................... (go) camping tomorrow. 11. My sister always (wear) nice clothes for work. Today she (wear)........... a blue jacket and shirt. 12. Why you (buy).............. so much food? - Because we (have)..............a party tonight. 13. That film (come)............... to the local cinema next week. You (want)............ to see it? 14. It (not rain)..........right now. The sun (shine)................ and the sky is blue. 15. Alice (not take).................the bus to school every day. She usually (walk).......... instead. 16. She (go).............. to school everyday. 17. Bad students never (work)........................ hard. 18. It often (rain)............... in summer. It (rain)...................... now. 19. He (not have)...................... any car. 20. What you often (do)............... in the morning? 21. She and I (like).............. (watching)..................... TV very much. 22. Where she (go)............? – she (go)................ to the theatre. 23. Mai (go) ..........to school in the morning. She (not go).....to school in the afternoon. 24. What ...she (do) .........on the weekend? She (go).................camping with her friends 25. They (play) ...........volleyball in the school yard now. 26. How often .......he (go) .......swimming? twice a week. *Complete the sentences with correct forms of the verbs in bracket 1. Nga (brush)___________ her teeth after dinners. 2. We (have)____________ Geography every Wednesday? 3. Nga and Lan (go)___________ to school six days a week. 4. Who (to be)____________ phoning you at the moment? 5. You (hear) ___________the wind? It (blow)____________ very strongly tonight. 6. What your son usually (have)______________for breakfast? 7. Nga (have)___________an English test in two days. 9. Yen (stand)_________ at the corner. She (wait) --------------- for the bus. 10. Summer vacation (come) ____________ soon. What (be) _____________your plan? * Give the correct form of the verbs in brackets: 1. There (be).................. thirty-nine students in my class. 2. What you (do)............... now? I (read)................. an English book. 3. He (play).................... soccer with his freinds after school? 4. How often Mai (go)...................... fishing? 5. They (not be)................. teachers in my school. 6. Mai (not do)............... her homework after school. 7. How long you (stay)...................... in Hue? For a week. 8. When she (have).................... English? 9. They (wait).................... for a train at the moment. 10. Look! the snow (fall)................ 11. We (be).............. tired and we would like some drinks. 12. Lan (have).................. an oval face and a small nose. 13. Look! The boys (play)....................... soccer now. 14. Where (be)................. Xuan and Mai? They (cook)................. in the kitchen at the moment. 15. Hoa (not like)............... meat. She (like)................... fish. 16. Why don't we (visit)...................the museun? 17. They often (jog)........................in the summer. 18. He (not want)...............................a hot drink. 19. Mr Quang (drive)...........................now. *Supply the correct form of these verbs: 1. We must (take)___________ an umbrella. It (rain)___________. 2. Where you (be)___________? – I'm upstairs. I (have)____________ a bath. 3. Sometimes I (get)____________ up before the sun (rise) . 4. You (enjoy)_____________ yourself or you (like)______________ to leave now? 5. I (enjoy)_____________ myself very much. I want (stay)____________ to the end. 6. We (destroy)__________ our environment. Many rare plants and animals (be)____________- in danger. 7. He He (grow)____________ vegetables in his garden next week? 8. His chickens (not/ produce)___________ many eggs. 9. My frend (have)__________ a small rice paddy and he (produce)_____________ some rice there. 10. They (build)_____________ a new factory soon to recycle old plastic.

2018 © Loga - Không Ngừng Sáng Tạo - Bùng Cháy Đam Mê
Loga Team