Giúp e vs ạ e cám ơn ạ
K
Khách
Hãy nhập câu hỏi của bạn vào đây, nếu là tài khoản VIP, bạn sẽ được ưu tiên trả lời.
Những câu hỏi liên quan
NT
0
PM
0
MN
13 tháng 5 2021
\(CuO+H_2\underrightarrow{^{t^0}}Cu+H_2O\)
=> Phản ứng thế
\(CaO+H_2O\rightarrow Ca\left(OH\right)_2\)
=> Phản ứng hóa hợp
\(Cu\left(OH\right)_2\underrightarrow{^{t^0}}CuO+H_2O\)
=> Phản ứng phân hủy
\(3Fe+2O_2\underrightarrow{^{t^0}}Fe_3O_4\)
=> Phản ứng hóa hợp
\(2KClO_3\underrightarrow{^{t^0}}2KCl+3O_2\)
=> Phản ứng phân hủy
\(Ba+2H_2O\rightarrow Ba\left(OH\right)_2+H_2\)
=> Phản ứng thế
\(Mg+2HCl\rightarrow MgCl_2+H_2\)
=> Phản ứng thế
XM
1
DT
Đỗ Thanh Hải
CTVVIP
21 tháng 9 2021
1 had worked - went - is travelling
2 do you do - worked
3 had gone
4 got - had gone
5 met - hadn't seen
6 was making
7 is having
8 is making - makes
9 am wearing
10 is reading
11 borrows - remembers
12 is he doing - think - is polishing
13 saw - was painting
14 was reading
15 went
16 was discovered
17 drinks - drank
18 does she do - plays - watches
19 are waiting
20 had left
15 tháng 11 2021
a: Xét ΔABH và ΔACH có
AB=AC
AH chung
BH=CH
Do đó: ΔABH=ΔACH
DT
Đỗ Thanh Hải
CTVVIP
17 tháng 7 2021
23 Has Nga read
24 Have they played
25 Have - already washed
26 Is -travelling
7 makes
8 started
9 are - are playing
22 tháng 4 2023
cái này áp dụng hệ thức lượng thôi bạn
AH=căn 6^2-4,8^2=3,6cm
=>AC=6^2/3,6=10cm
Tom asked if I was going to visit my aunt the day after
The teacher told his students to listen to him and not to make a noise
Mary told Helen she was tired of eating fish
Our teacher said the sun always rises in the east
Martha asked where I was going for my holidays
Sammy told Jean she hadn't stolen his fur coat the day before
Judy offered to help me make the sandwiches
Miss Borne asked us to do our homework every day