1.on

2.to drink

3.careful

Hóa học đâu có ở lớp 6 đâu bạn mà đây cũng đâu phải là môn Hóa

Ai đề môn Hoá đâu bn, bn sao v

We can reuse ……………..

     A. water                       B. air                            C. bottles

Trả lời:

C. bottles

HT

1/.Give the correct form of the word to complete the sentences:

1, She locked the door so as ........... not to be disturbed....................... .                  NOT DISTURB

2, We receive a lot of ........encouragement........................from our teacher.      ENCOURAGE

3, Many ...........cultural................... activities are held every year.         CULTURE

4, l'm .......amazing........................ that he won price                               AMAZE

2/ Chircle the underlined words or phrase (A, B, C or D) that are incorrect and correct them:

1, We have sung together ever when l was a small child. ->....................since.................

               A                                    B         C                  D                                            

2, My father's car is the same colour  my uncle's car. -> ........as.............................

                A                B                       C               D

3, Shall you close the window for me, please? -> .........Can..........

      A               B                       C              D

1) 1. not be disturbed 

2.encouragement

3. cultural

4.amazed

2) 1A --> when -> since

 2C --> --> as

3A ---> SHALL --> WILL

Bạn tham khảo :

My favourite hobby is reading. I enjoy reading a book when I am free. I started to do it when I was four years old. The first time I did it, I felt interested. So I kept reading. The teachers always taught me to read the difficult words. I was happy when I read a story with a happy ending. I was thrilled when I read a detective story. I enjoy reading because I to explore the imaginative world of my favourite author, J.K.Rowling who writes “ Harry Potter” . There are a lot of advantages of reading. Reading can make me relaxed and calm. I can also learn new vocabulary items. Then I can further improve my English. Moreover, it can give me an unlimited imagination, so I can write books in the future. I can learn the different cultures and customs of other countries in the world too. I read at least one hour every day. I read books by myself. I usually read it at home. I wish I could read different kinds of books because it might be very challenging.

Nguồn : lazi.vn

My favourite hobby is reading. I enjoy reading a book when I am free. I started to do it when I was four years old. The first time I did it, I felt interested. So I kept reading. The teachers always taught me to read the difficult words. I was happy when I read a story with a happy ending. I was thrilled when I read a detective story. I enjoy reading because I to explore the imaginative world of my favourite author, J.K.Rowling who writes “ Harry Potter” . There are a lot of advantages of reading. Reading can make me relaxed and calm. I can also learn new vocabulary items. Then I can further improve my English. Moreover, it can give me an unlimited imagination, so I can write books in the future. I can learn the different cultures and customs of other countries in the world too. I read at least one hour every day. I read books by myself. I usually read it at home. I wish I could read different kinds of books because it might be very challenging.

1. tomorrow / can / not / we / somewhere / I / so / working / go / am

=> I am not working tomorrow so we can go some where.

2. back / in / months / England / going / two / are / to / they

=> They are going back to England in two months.

3.struggle / on / always / nature / home / life / at / is / the farm / with / a

=> At home on the farm, life is always a struggle with nature.

4. lot / l / when / was / Da Lat / , / in / l / a / of / place. / visited / beautiful

=> I was went visited a lot of beatiful place in Da Lat .

5 . l / an / met / and / Englishman / to / talked / in / him / English. / yesterday,

=> I met and talked to an English man in English yesterday

1. I am not working tomorrow so we can go some where.

2. They are going back to England in two months.

3.  At home on the farm, life is always a struggle with nature

Chúc bn học tốt

\(2KClO_3\rightarrow^{t^o}2KCl+3O_2\)

2                          2                  3

0,03          \(\rightarrow\)  0,03           0,045

\(n_{KClO_3}=\frac{m}{M}=\frac{3,675}{39+35,5+16.3}=0,03mol\)

\(O_2+C\rightarrow^{t^o}CO_2\)

1          1            1

0,045       \(\rightarrow\) 0,045       0,045

\(m_C=n.M=0,045.12=0,54g\)

\(V_{CO_2\left(ĐKTC\right)}=n.22,4=0,045.22,4=1,008l\)

áp dụng ĐLBTKL: \(m_A+m_{O_2}=m_{A_2O_x}\)

\(\Leftrightarrow0,84+m_{O_2}=1,2\)

\(\Leftrightarrow m_{O_2}=0,36g\)

\(n_{O_2}=\frac{m}{M}=\frac{0,36}{32}=0,1125mol\)

PTHH: \(4A+xO_2\rightarrow^{t^o}2A_2O_x\)

           \(\frac{0,045}{x}\)   \(0,01125\)     mol

\(\rightarrow n_A=n_{O_2}=\frac{0,01125.4}{x}=\frac{0,045}{x}mol\)

\(\rightarrow M_A=\frac{m}{n}=\frac{84}{\frac{0,045}{x}}=0,84.\frac{x}{0,045}\approx18,67x\left(g/mol\right)\)

Biên luận 

Vậy kim loại đó là sắt

1;b

2;c

3;c

4;a

5;d

Hok tốt 

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