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14 tháng 9 2021

1 knowing the answer, they told us

2 the unique handicraft, we didn't like it

3 We looked into these machines so that we could find out the method 

We looked into these machines so as to find out the method 

4 Jack's poverty, everyone looks up to him

5 In order to choose the best chair, Linda looked through this catalouge 

6 is not as dirty as this one

7 I didn't play as successfully as Linda

8 A dog can't run as fast as a horse

A dog runs more slowly than a horse

9 No rivers in the world is as long as the Nile

10 No one in my family talks as politely as Linda

14 tháng 9 2021

thank you so much

12 tháng 9 2021

1 was arrested before the garden by the boy yesterday

2 his cats taken care of carefully by Jack everyday

3 Has the country been protected from Covid-19 successfully

4 is reported that the man is running out of money

is reported to be running out of money\

5 has been said that the thief got out of the prison

has been said to have got out of the prison

6 was thought that Mary had turned down the job

Mary was thought to have  turned down the job

12 tháng 9 2021

thanhk you so much

11 tháng 9 2021

1 My parents go shopping twice a week

2 Hoa's house has a balcony

3 My brother usually plays badminton with his friends

4 My favorite book is Tam and Cam. What is yours?

5 There are 10 pencil cases on the table

24 tháng 2 2022

1, My parents go shopping twice a week.

2, Hoa's house has a balcony.

3, My brother usually plays badminton with his friends.

4, My favorite book is Tam and Cam. What's yours?

5, There are ten pencil cases on the table.

5 tháng 12 2021

Em tách ra từng bài nhé !

26 tháng 10 2021

Bài 3:

\(a,=\sqrt[3]{\left(x-1\right)^3}-\sqrt[3]{\left(5x+1\right)^3}=x-1-5x-1=-4x-2\\ b,=6a-6a+20a=20a\)

Bài 2:

\(a,=2\sqrt[3]{6}+3\sqrt[3]{5}-4\sqrt[3]{6}-2\sqrt[3]{5}=\sqrt[3]{5}-2\sqrt[3]{6}\\ b,=\sqrt[3]{8}-4\sqrt[3]{27}+2\sqrt[3]{64}=2-12+16=6\\ c,=\sqrt[3]{64}+\sqrt[3]{48}+\sqrt[3]{36}-\sqrt[3]{48}-\sqrt[3]{36}-\sqrt[3]{27}=4-3=1\\ d,=\sqrt[3]{162\left(-2\right)\cdot\dfrac{2}{3}}=\sqrt[3]{-216}=-6\)

26 tháng 10 2021

Thank you

3 tháng 10 2021

\(2/\\ \text{Cho quỳ tím vào 4 mâu:}\\ \text{- Hoá xanh: }KOH; Ba(OH)_2(1)\\ \text{- Không hiện tượng: } KCl; K_2SO_4 (2)\\ \text{Đổ nhóm 1 vào nhóm 2: }\\ \text{- Tạo kết tủa: } Ba(OH)_2; K_2SO_4\\ \to Ba(OH)_2 \text{ ở nhóm 1 và } K_2SO_4 \text{ ở nhóm 2}\\ \text{- Không hiện tượng: } KCl; KOH (2)\\ \to KOH \text{ ở nhóm 1 và } KCl \text{ ở nhóm 2}\\ Ba(OH)_2+K_2SO_4 \to BaSO_4+2KOH\)

3 tháng 10 2021

\(3/\\ 2Fe(OH)_3 \xrightarrow{t^{o}} Fe_2O_3+3H_2O\\ n_{Fe_2O_3}=0,15(mol)\\ \to n_{Fe(OH)_3}=0,15.2=0,3(mol)\\ m_{Fe(OH)_3}=0,3.107=32,1(g)\)