1..so I tired
2..I tried my best
3.. the most beautiful place in the world
4..tease the dog

1The children are playing football at the moment
2I haven't met Lan for a long time

Ảnh 1:

1. I stayed up late, so I am tired

2. I did not pass my exam although I tried my best

3. My homeland is the best beautiful place in the world

4. Don't tease the dog

Ảnh 2:

1. The children are playing football at the moment

2. I hasn't met Lan for a long time

m.n có thấy rõ ko ạk

hình đây ạk

9A
10D
11C
12B
13A
14C
15D

a) 

\(C_{M_{NaOH}}=\dfrac{0.5}{0.25}=2\left(M\right)\)

b) 

\(C\%_{CuSO_4}=\dfrac{50}{200}\cdot100\%=25\%\)

c) 

\(m_{dd_{KCl}}=20+580=600\left(g\right)\)

\(C\%_{KCl}=\dfrac{20}{600}\cdot100\%=3.33\%\)

d) 

\(C_{M_{CuSO_4}}=\dfrac{1.5}{0.75}=2\left(M\right)\)

goes
leaves
gets up
plays
do you usually get
opens - closes
visit
study
don't feel like
have
does the train for HCM city leave
recognize
do you do 
comes back - want

\(21_{10}=10101_2\)

4P+5O₂-to>2P₂O₅

         0,2-------0,08 mol

n _P=\(\dfrac{6,4}{31}\)=\(\dfrac{32}{155}\) mol

n _O2=\(\dfrac{4,48}{22,4}=0,2mol\)

=>P dư 

m _{P dư} =\(\dfrac{9}{775}\).31=0,36g

=>m _P2O5= 0,08.142=11,36g

44 ban nhe

đề bài là tính thông thường thôi hả bạn

98765432x9876432-98765431x98765433

=9752655002593024-98765431x98765433

=9752655002593024-9754610558146623

=   -1955555553599

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