`Cu+4HNO_3đ→Cu(NO_3)_2+2NO_2+2H_2O`
`Fe+4HNO_3l→Fe(NO_3)_3+NO+2H_2O`
`3Pb+8HNO_3l→3Pb(NO_3)_2+2NO+4H_2O`
`Al+6HNO_3đ→Al(NO_3)_3+3NO_2+3H_2O`
`4Zn+10HNO_3l→4Zn(NO_3)_2+N_2O+5H_2O`
Đáp án + giải thích các bước giải:
`Cu+4HNO_3 đ \to Cu(NO_3)_2+2NO_2↑+2H_2O`
`Fe+4HNO_3 l \to Fe(NO_3)_3+NO↑+2H_2O`
`3Pb+8HNO_3 l \to 3Pb(NO_3)_2+2NO↑+4H_2O`
`Al+6HNO_3 đ \to Al(NO_3)_3+3NO_2↑+3H_2O`
`4Zn+10HNO_3 l\ \to 4Zn(NO_3)_2+N_2O↑+5H_2O`
Giúp dùm em đi ạ🥺 em cảm ơn hứa vote 5 sao và câu trả lời hay nhất ạ
1. Do you find it hard to study English ? Do you have
Giúp mình với mọi người ơi 1. the/ as/ hot/ winter/ summer./ not/ The/ as/ is 2. as / physics./ is/ interesting/ biology/ I think/ as 3. are/ big/ screens. / Mobile phone/ as/ screens/ as/ tablet/ not 4. are/ as/ Lessons at school/ as/ school trips./ much fun/ not 5. expensive/ as/ motorbike/ my mum's/ car!/ My dad's/ as/ was 6. not/ bike/ was/ as/ My/ fast/ my/ new bike./ as/ old
Calli: War ch3t lu^nn Yc: Có background đẹp, Digi/ tradi, Kó tâm hộ, cấm spam. NL: * Khy kó ai chê toy ế, toy ciểu :D *
Calli: Cười lên đi, mọi chuyện rồi cũng sẽ qua thôi! Nl: E là zịt zàng đáng êu
Vẽ nhân vật Gin trong Conan Ai vẽ đẹp hứa cho hay nhất Vẽ đen trắng nha
Giúp em với ạ cần mỗi đáp án thôi ạ
1. You’d better stop spending money, _________you will end up in debt. A. unless B. otherwise C. if D. in case 2. I ________ my best suit at the party last night. Everyone else was very casually dressed. A. needn't wear B. mustn't wear C. mustn't have worn D. needn't have worn 3. If you need any support, you can _________ me to back you up. A. believe on B. rely on C. depend on D. put on 4. It is time the government _________measures to reduce the current high unemployment rate. A. takes B. take C. took D. must take 5. Remember to _________ the campfire before you leave. A. put off B. put down C. put out D. put up 6. _________ you visit him, give him my best wishes. A. Could B. Would C. Should D. Might 7. You _________ give me a lift. I can easily catch a bus. A. don’t have B. needn’t C. don’t need D. mustn’t 8. - Did your brother go to France? ~ No, our parents suggested that we__________ there at night. A. won’t go B. don’ t go C. not go D. not to go 9. Since you have never taken any listening test before, I would like to recommend you that you_________so nervous. Keep calm as much as possible. A. should not have been C. should not be B. are not D. needn’t be 10. My brother has just got a traffic accident. I_________ him to drive more carefully. A. must have advised C. may have advised B. should have advised D. can’t have advised
mn làm bài 2cde bài 4cde nha làm đầy đủ dễ hiểu ko làm tắt nha
Giúp mình luôn với ạ vì mình đang cần gấp á, sẽ vote 5 sao nha, cảm ơn mn nhìu^^
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