K
Khách
Hãy nhập câu hỏi của bạn vào đây, nếu là tài khoản VIP, bạn sẽ được ưu tiên trả lời.
SV
Sinh Viên NEU
CTVVIP
22 tháng 10 2023
1. We enjoy trying new foods from different cultures.
→ We are keen …………on trying new foods from different cultures ……………………………………………………………………
2. This village is beautiful and peaceful. Many people from the city go there at their weekends. (therefore)
……This village is beautiful and peaceful. Therefore, many people from the city go there at their weekends.………………………………………………………………………………………
3.The painting is more expensive than the photo.
The photo is not as …………expensive as the painting …………………………………………………..……….…
22 tháng 10 2023
PT: \(3Fe+2O_2\underrightarrow{t^o}Fe_3O_4\)
a, \(n_{Fe}=\dfrac{11}{56}\left(kmol\right)\)
Theo PT: \(n_{Fe_3O_4\left(LT\right)}=\dfrac{1}{3}n_{Fe}=\dfrac{11}{168}\left(kmol\right)\)
\(\Rightarrow m_{Fe_3O_4\left(LT\right)}=\dfrac{11}{168}.232=\dfrac{319}{21}\left(kg\right)\) > mFe3O4 (TT) = 200 (kg)
→ vô lý
Bạn xem lại đề phần a nhé.
b, \(n_{Fe_3O_4}=\dfrac{23,2}{232}=0,1\left(kmol\right)\)
Theo PT: \(n_{Fe\left(LT\right)}=3n_{Fe_3O_4}=0,3\left(kmol\right)\)
\(\Rightarrow m_{Fe\left(LT\right)}=0,3.56=16,8\left(kg\right)\)
Mà: H = 85%
\(\Rightarrow m_{Fe\left(TT\right)}=\dfrac{16,8}{85\%}=\dfrac{336}{17}\left(kg\right)\)
SV
Sinh Viên NEU
CTVVIP
22 tháng 10 2023
1. Write (T) for True or (F) for false statement (0,75 point). Statement True False
1. A lot of teenagers don’t participate in clubs in their schools. F
2. You make new friends when you join a school club. T
3. At club meetings you will spend some time with other members. T
2. Answer the following questions (0.75 point).
1. What skills can you develop by participating in different clubs and working with diverse people? …………They are communication , teamwork and time management …………………………………………………………………………………….
2. Do you only learn more about your area of interest? ………No, I don't …………………………………………………………………………………………
3. How you will feel when you work with new people, organise club activities, and take part in different events? …………I will feel much better about myself ……………………………………………………...………………………………
CH
22 tháng 10 2023
1. I like to live in the countrysidepeople here are friendly and hospitable. A. because B. so C. or D. and 2. Your painting is really beautiful, Lan! ………………………………………. A. I love drawing. B. Thank you, Nick. C. It doesn’t matter. D. Can you say that again
DT
1
22 tháng 10 2023
`#3107.101107`
`= -2 . (x^3y . x^2) - 2y +1`
`= -2x^5y -2y +1`
22 tháng 10 2023
\(n_{H_2}=\dfrac{7,436}{24,79}=0,3\left(mol\right)\)
PTHH :
\(2Al+6HCL\rightarrow2AlCl_3+3H_2\uparrow\)
0,2 0,6 0,2 0,3
\(b,C_{M\left(HCl\right)}=\dfrac{0,6}{0,2}=3\left(M\right)\)
\(c,m_{AlCl_3}=0,2.133,5=26,7\left(g\right)\)
1 D
2 B