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Make conditional sentences:
1. Keep silent or you’ll wake the baby up. →If YOU DON'T KEEP SILENT , YOU WILL WAKE THE BABY UP……………………………………………..…..………
2. Stop talking or you won’t understand the lesson.→ If ………YOU DON'T STOP TALKING , YOU WON'T UNDERSTAND THE LESSON…………………………….....….…….
3. I don’t know her number, so I don’t ring her up.→ If I KNEW THE NUMBER, I WOULD RING HER UP…………………………………….....….……..
4. I don’t know the answer, so I can’t tell you.→ If ……I KNEW THE ANSWER, I COULD TELL YOU……………………………………….………..
5. We got lost because we didn’t have a map.→ If ……………WE HAD ……………HAD A MAP, WE WOULDN'T HAVE GOT LOST………….……..…….……
6. Susan felt sick because she ate four cream cakes. →……IF SUSAN HADN'T EATTEN FOUR FCREAM , SHE WOULDN'T HAVE FELT SICK………………………………………..……
7. Without this treatment, the patient would have died. →…IF HE HADN'T RECEIVED THIS TREATMENT, THE PATIENT WOULD HAVE DIED…………………………………….….…...
8. He lost his job because he was late every day. →……IF HE HADN'T BEEN LATE EVERYDAY, HE WOULDN'T…HAVE LOST HIS JOB………………………………………...……
9. Peter is fat because he eats so many chips. →…………IF PETER DIDN'T EAT SO MANY CHIPS,HE WOULDN'T BE FAT…………………………………………...…..
10. Robert got a bad cough because he started smoking cigarettes. →………IF ROBERT HADN'T STARTED SMOKING CIGARETTES, HE WOULDN'T HAVE GOT A BAD COUGH………………………..…..
The lions are fed at 3 pm every day.
2. We got lost because we didn't have a map.
If we had had a map, we wouldn't have got lost.
3. I would prefer you to deliver the sofa on Friday.
I would rather you delivered the sofa on Friday.
4. The bridge was so low that the bus couldn't go under it.
It was such a low bridge that the bus couldn't go under it.
5. That was a silly thing to say.
What a silly thing to say!
6. We've run out of tea.
There isn't any tea left.
7. I last saw him when I was a student.
I haven't seen him since I was a student.
8. Susan was too excited to sleep.
Susan was so excited that she couldn't sleep.
9. Robert has not had a job for two years.
Robert has been unemployed for two years.
10. She will complete the work only she is paid extra.
She will not complete the work unless she is paid extra.
1. All the students love the principal. He is very kind. (because of)
All the students love the principal because of his kindness
2. I have forgotten the tickets. I’m sorry for it. (having)
I’m sorry for having forgotten the tickets.
3. I saw it with my own eyes. I believed it. (if)
If I hadn’t seen it with my own eyes, I wouldn’t have believed it.
4. The house at the end of the street has been sold. It has been empty for years. (which)
The house at the end of the street which has been empty for years has been sold.
5. It's a pity he doesn't take the doctor's advice. (wish)
I wish he took the doctor's advice.
1. The keepers feed the lions at 3 pm every day.
The lions are fed by the keepers at 3pm every day.
2. We got lost because we didn't have a map.
If we had had a map, we wouldn't have got lost.
3. I would prefer you to deliver the sofa on Friday.
I would rather you delivered the sofa on Friday.
4. The bridge was so low that the bus couldn't go under it.
It was such a low bridge that the bus couldn't go under it.
5. That was a silly thing to say.
What a silly thing to say!
6. We've run out of tea.
There is no tea left.
7. I last saw him when I was a student.
I haven't seen him since I was a student.
8. Susan was too excited to sleep.
Susan was so excited that she couldn't sleep.
9. Robert has not had a job for two years.
Robert has been unemployed for two years.
10. She will complete the work only she is paid extra.
She will not complete the work unless she is paid extra.
1. All the students love the principal. He is very kind. (because of)
-> Because of the principal's kindness, all the students love him.
2. I have forgotten the tickets. I’m sorry for it. (having)
-> I'm sorry for having forgotten the tickets.
3. I saw it with my own eyes. I believed it. (if)
-> If I hadn't seen it with my own eyes, I wouldn't have believed it.
4. The house at the end of the street has been sold. It has been empty for years. (which)
-> The house at the end of the street which has been empty for years has been sold.
5. It's a pity he doesn't take the doctor's advice. (wish)
-> I wish he took the doctor's advice.
TL : tên Lâm nèk
Tên nhóm là 'æ' và 'phụ' của 'Avatar X Experience'. Ý nghĩa ẩn có nghĩa là các hoạt động sáng tạo khác nhau theo chủ đề 'Trải nghiệm một thế giới mới thông qua' Avatar 'của tôi và gặp gỡ với những con người khác.
TL:
Tên nhóm là 'æ' và 'phụ' của 'Avatar X Experience'. Ý nghĩa ẩn có nghĩa là các hoạt động sáng tạo khác nhau theo chủ đề 'Trải nghiệm một thế giới mới thông qua' Avatar 'của tôi và gặp gỡ với những con người khác.
( hỏi chị GG là bt hết )
HT
Hiện tượng
• Mẩu natri phản ứng rất mạnh với nước, chạy trên mặt dung dịch, có thể nóng chảy thành giọt nhỏ.
• Có khí không màu thoát ra (khí H₂).
• Dung dịch ban đầu màu xanh lam dần nhạt màu.
• Xuất hiện kết tủa màu xanh (Cu(OH)₂).
• Không thấy đồng kim loại màu đỏ xuất hiện.
Phương trình hóa học
Bước 1: Natri phản ứng với nước
Bước 2: NaOH tạo ra phản ứng với CuSO₄
𝑀𝑔(1)𝑀𝑔𝐶𝑙2(2)𝑀𝑔(𝑂𝐻)2(3)𝑀𝑔𝑂(4)𝑀𝑔𝑆𝑂
Mg → MgCl₂ → Mg(OH)₂ → MgO → MgSO₄ (1) Mg + 2HCl → MgCl₂ + H₂ (2) MgCl₂ + 2NaOH → Mg(OH)₂ + 2NaCl (3) Mg(OH)₂ → MgO + H₂O (đun nóng) (4) MgO + H₂SO₄ → MgSO₄ + H₂O
Điền chất và viết PTHH:
(1) Mg + 2HCl → MgCl₂ + H₂↑
(2) MgCl₂ + 2NaOH → Mg(OH)₂↓ + 2NaCl
(3) Mg(OH)₂ → MgO + H₂O
(4) MgO + H₂SO₄ → MgSO₄ + H₂O
(1) Mg → MgCl₂ Cho Mg tác dụng với axit HCl: → Mg + 2HCl → MgCl₂ + H₂ ⇒ (1): HCl (2) MgCl₂ → Mg(OH)₂ Cho MgCl₂ tác dụng với bazơ (NaOH): → MgCl₂ + 2NaOH → Mg(OH)₂↓ + 2NaCl ⇒ (2): NaOH (3) Mg(OH)₂ → MgO Nhiệt phân: → Mg(OH)₂ —t°→ MgO + H₂O ⇒ (3): t° (nhiệt) (4) MgO → MgSO₄ Cho MgO tác dụng với axit H₂SO₄: → MgO + H₂SO₄ → MgSO₄ + H₂O ⇒ (4): H₂SO₄
(1) Mg + 2HCl → MgCl2 + H2↑
(2) MgCl2 + 2NaOH → Mg(OH)2 ↓ +2NaCl
(3) Mg(OH)2→MgO + H2O
(4) MgO + H2SO4 → MgSO4 + H2O
(1) Mg + 2HCl → MgCl2 + H2↑ (2) MgCl2 + 2NaOH → Mg(OH)2 ↓ +2NaCl (3) Mg(OH)2→MgO + H2O (4) MgO + H2SO4 → MgSO4 + H2O
(1) Mg + 2HCl → MgCl2 + H2↑ (2) MgCl2 + 2NaOH → Mg(OH)2 ↓ +2NaCl
(3) Mg(OH)2→MgO + H2O (4) MgO + H2SO4 → MgSO4 + H2O
(1) Mg + 2HCl → MgCl2 + H2↑
(2) MgCl2 + 2NaOH → Mg(OH)2 ↓ +2NaCl
to (3) Mg(OH)2→MgO + H2O
(4) MgO + H2SO4 → MgSO4 + H2O
(1) Mg + 2HCl → MgCl2 + H2↑
(2) MgCl2 + 2NaOH → Mg(OH)2 ↓ +2NaCl
(3) Mg(OH)2→MgO + H2O
(4) MgO + H2SO4 → MgSO4 + H2O
(1) Mg + 2HCl → MgCl2 + H2↑
(2) MgCl2 + 2NaOH → Mg(OH)2 ↓ +2NaCl
to (3) Mg(OH)2→MgO + H2O
(4) MgO + H2SO4 → MgSO4 + H2O
(1) Mg + 2HCl → MgCl2 + H2↑ (2) MgCl2 + 2NaOH → Mg(OH)2 ↓ +2NaCl (3) Mg(OH)2→MgO + H2O (4) MgO + H2SO4 → MgSO4 + H2O
(1) Mg + 2HCl → MgCl2 + H2↑ (2) MgCl2 + 2NaOH → Mg(OH)2 ↓ +2NaCl to (3) Mg(OH)2→MgO + H2O (4) MgO + H2SO4 → MgSO4 + H2O
1. Hoàn thành sơ đồ phản ứng Step 1: Phản ứng (1) Mg+2HCl→MgCl2+H2↑𝑀𝑔+2𝐻𝐶𝑙→𝑀𝑔𝐶𝑙2+𝐻2↑ Step 2: Phản ứng (2) MgCl2+2NaOH→Mg(OH)2↓+2NaCl𝑀𝑔𝐶𝑙2+2𝑁𝑎𝑂𝐻→𝑀𝑔(𝑂𝐻)2↓+2𝑁𝑎𝐶𝑙 Step 3: Phản ứng (3) Mg(OH)2MgO+H2O𝑀𝑔(𝑂𝐻)2𝑡∘𝑀𝑔𝑂+𝐻2𝑂
Step 4: Phản ứng (4) MgO+H2SO4→MgSO4+H2O𝑀𝑔𝑂+𝐻2𝑆𝑂4→𝑀𝑔𝑆𝑂4+𝐻2𝑂Mg+2HCl→MgCl2+H2↑𝑀𝑔+2𝐻𝐶𝑙→𝑀𝑔𝐶𝑙2+𝐻2↑(Magie tác dụng với axit Clohidric dư tạo muối Magie Clorua và giải phóng khí Hidro)
MgCl2+2NaOH→Mg(OH)2↓+2NaCl𝑀𝑔𝐶𝑙2+2𝑁𝑎𝑂𝐻→𝑀𝑔(𝑂𝐻)2↓+2𝑁𝑎𝐶𝑙(Muối Magie Clorua tác dụng với dung dịch Bazơ Natri Hidroxit tạo kết tủa trắng Magie Hidroxit)
Mg(OH)2MgO+H2O𝑀𝑔(𝑂𝐻)2𝑡𝑜𝑀𝑔𝑂+𝐻2𝑂(Phản ứng nhiệt phân: Nung nóng Magie Hidroxit thu được Magie Oxit và hơi nước)
MgO+H2SO4→MgSO4+H2O𝑀𝑔𝑂+𝐻2𝑆𝑂4→𝑀𝑔𝑆𝑂4+𝐻2𝑂(Magie Oxit tác dụng với axit Sunfuric tạo thành muối Magie Sunfat và nước)
Các phương trình hóa học hoàn chỉnh là:
Mg+2HCl→MgCl2+H2↑𝐌𝐠+𝟐𝐇𝐂𝐥→𝐌𝐠𝐂𝐥𝟐+𝐇𝟐↑(1)
(2)
MgCl2+2NaOH→Mg(OH)2↓+2NaCl𝐌𝐠𝐂𝐥𝟐+𝟐𝐍𝐚𝐎𝐇→𝐌𝐠(𝐎𝐇)𝟐↓+𝟐𝐍𝐚𝐂𝐥(3)
Mg(OH)2MgO+H2O𝐌𝐠(𝐎𝐇)𝟐𝑡𝑜𝐌𝐠𝐎+𝐇𝟐𝐎(4)
MgO+H2SO4→MgSO4+H2O𝐌𝐠𝐎+𝐇𝟐𝐒𝐎𝟒→𝐌𝐠𝐒𝐎𝟒+𝐇𝟐𝐎1. 𝑀𝑔+2𝐻𝐶𝑙→𝑀𝑔𝐶𝑙2+𝐻2 (hoặc 𝑀𝑔+𝐶𝑙2 𝑡𝑜 𝑀𝑔𝐶𝑙2)
2. MgCl2+2NaOH→Mg(OH)2↓+2NaCl
3. 𝑀𝑔 ( 𝑂𝐻 )2 𝑡𝑜 𝑀𝑔𝑂 +𝐻2𝑂
4. MgO+H2SO4→MgSO4+H2O
mg+2hcl-> mgcl2+h2
mgcl2+2naoh->mg(oh)2+2nacl
mg(oh)2->mgo+h2o
mgo+h2so4->mgso4+h2o
e làm ra giấy r xem kết quả ạ
J
heheh
duudu