Giúp tiếp nào các hảo sư huynh
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DT
Đỗ Thanh Hải
CTVVIP
30 tháng 10 2021
1 had finished - went
2 hadn't eaten - came
3 told - had never met
4 had done - went
5 went - got
6 had - begun - left
7 had been - started
S
1
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4 tháng 8 2023
\(Hihi\)! Sư huynh cái gì? Bạn bè chứ!
Mà giúp cái gì vậy, anh học lớp 6 à, em mới lớp 5 thôi!
@lần sau anh nhớ ghi câu hỏi rõ ràng nha#
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DT
Đỗ Thanh Hải
CTVVIP
14 tháng 10 2021
1 because
2 although
3 While
4 Although
5 When
6 Although
7 if
8 while
9 although
10 because
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11 tháng 4 2022
\(n_{Al}=\dfrac{5,4}{27}=0,2\left(mol\right)\\
pthh:2Al+3H_2SO_4->Al_2\left(SO_4\right)_3+3H_2\)
0,2 0,1 0,3
\(\left\{{}\begin{matrix}m_{Al_2\left(SO_4\right)_3}=0,1.342=34,2\left(g\right)\\V_{H_2}=0,3.22,4=6,72\left(L\right)\end{matrix}\right.\)
8 left - had bought - needed
9 had burnt - arrived
10 had done - was
11 had - heard - told
12 had lived - came
13 didn't talk - arrived - had already left
14 went - had stopped
15 thought - had won - didn't have
Oki:))