Hóng ido maianh713 =33
Hị Hị :]]]
mình trình bày trong hình :"<<
Các anh chị ơi, ai đag cần điểm gấp thì vào trả lời hộ em với ạ. Chìu nay em đi hc rồi ạ❤❤
Giúp mình với mình đang cần gấp bài1 cả ba câu
giúp mik bài số 3 với ạ ( gấp ạ )
Tính 13/45.15/34.51/91 (13 1/2.6 3/5).(3 1/9.2 3/11) 74 19/35:7/90+15 16/35.7/90 (35 1/15–1/11).11
Điền từ cho sẵn [debris/original/environmental/aid/tsunami/raged/native] 1. All our English teachers are ... speakers 2. The forest fire ... for eight hours, killing all of the animals 3. ... is a huge wave that can destroy towns near the sea 4. Emergency teams are still clearing the ... from the plane crash 5. The government is sending ... to the flood victims 6. What can be done to protect people from ... disasters?
Giải giúp mk câu c đến câu e vs
1.Đốt cháy hoàn toàn 8,4g kim loại R trong khí oxi ,sản phẩm thu được có khối lượng là 11,6g.Xác định R 2.Nguyên tử Z có tổng số hạt bằng 58 và có nguyên tử khối <40.Hỏi Z thuộc nguyên tố hóa học nào? 3.Có 1 cân thăng bằng ,trên đĩa cân A đặt cốc A chứa 200 g dd HCl 10,95% ,trên đĩa cân B đặt cốc B chứa 200g dd H2SO4 9,8%.Cho vào cốc A 8,1g nhôm và cho vào cốc B x gam kẽm,sau khi kết thúc các pư thì thấy cân thăng bằng .Tính x
Mn giải hộ mình nhé. Mình đang cần gấp
II. Complete the sentences with the words or phrases from the box street children volunteers homeless people elderly people sick children disabled people donors 1.Sally often spends her free time helping ___________ at the hospital 2. They provide housing and other services to ____________ 3. Street Child works to help ____________off the streets and into school. 4. Most blood _____________ are unpaid volunteers who donate blood for a community supply. 5. School need ____________ to help children to read. 6. They help ____________ with housework and gardening. 7. The local authority built a new home for severely ___________________. III. Underline the correct answers. 1.I saw/ have seen that film already. 2. We went/ have gone to the movies three times last month. 3. Did you ever do/ Have you ever done volunteer work? 4. I had/ have had five tests so far this semester. 5. Linus did/ has done his homework before he went to sleep. 6. This is my grandparents’ house. They lived/ have lived here for more than 50 years 7. She bought/ has bought a new mobile phone two days ago. 8. Did you see/ Have you seen Peter at the party last night? 9. I read/ have read this book twice and I stil find it very interesting. 10. They didn’t play/ haven’t played very well yesterday. They lost the match. IV. Put the verbs into the correct tense, past simple or present perfect. 1. _____________ (you/ ever/ be) to the United States? – No, but I _____________ (be) to England and France. 2. When we were in Canada, we ___________ (go) skiing almost every day. 3. When ____________ (you/meet) your wife? – 3 years ago 4. Peter ____________ (not phone) yet. I’m still waiting. 5. I _________________ (know) Helen since we were at school together. 6. My uncle ___________ (live) in Berlin in 1999. 7. We _____________ (not see) Beth at Mike’s house yesterday morning. 8. Do you like this picture? My uncle ___________(paint) it. 9. Mr Dass_____________ (leave) for New York late last night. 10. Mr and Mrs Grey _______________ (teach) French here for over five years. V. Join each pair of sentences using because, as or since 1.He stopped the car. The traffic lights turned red. (because) ………………………………………………………………………………………………….. 2. Jane didn’t join our programme. She had to take a summer course. (as) …………………………………………………………………………………………………. 3. He behaved very rudely. Everyone dislikes him. (since) ………………………………………………………………………………………………….. 4. They like doing something useful. They do volunteer work. (because) ………………………………………………………………………………………………… 5. I won’t be able to attend the meeting. I’ll be on holiday with my family. (since) …………………………………………………………………………………………………. 6. It was raining heavily. We decide to stay home and watch TV. (as) ………………………………………………………………………………………………….. 7. He wants to get fit. He‘s training hard. (because) …………………………………………………………………………………………………… 8. Sally was ill. She didn’t go to school yesterday. (since) …………………………………………………………………………………………………… VI. Complete the sentences with and, but, so, or, because. 1.Olivia was very happy ………………….she passed her exammination. 2. He didn’t study …………………….. he failed the history exam. 3. My mother usually gets home at 5 o’clock …………………….. then she cooks dinner. 4. I was late for class this morning………………………. the bus was late 5. We went to Jane’s house …………………..she was out. 6. We can go to the pool…………………. We can go horse-riding, whichever you prefer. 7. She is studying very hard…………………… she wants to be a doctor. 8.Carol studied hard for the maths test………………….. she couldn’t get a good mark. 9. The floor was wet and slippery ………………… Mason almost fell. 10. Mike ate healthy food ……………….. did regular exercises to keep fit. VII. Fill in each blank with a suitable preposition. 1. Tom Holden worked ………………. a volunteer at a charity in 2010. 2. They provided housing and other supports………………… homeless people. 3. Some volunteers enjoy helping elderly people living …………………. Nursing homes. 4. She donated thousands of pounds ………………… children’s charities. 5. The benefits …………….. volunteering are enormous to you, and your community. 6. You can volunteer to help cook and serve a meal …………………. a homeless shelter. 7. UNICEF has launched a campaign to help children ………………need. 8. They provided street children ……………….food and books.
hòa tan 6,88 gam mot hon hop gom Al2O3 va fe vào 250 ml dd HCl thu duoc dung dich A và V lít khí hidro. Thêm từ từ dung dịch NaOH 2M vào dd A đến khi lượng kết tủa không đổi thì hết 240 ml, lọc kết tủa và nung trong không khí thu được 4 gam chất rắn
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