mk thứ 4 nè

1 Vesak Day is a religious festival for those who follow Buddhism ( religion )

2 I think it is a good choice in this circumstance ( choose)

3 We are having an interview with Mr.Phong , one of the Elephant Race organnizers ( organise)

4. The Carnival of Rio de Janeiro is a very.............fascinated............... festival ( fascinate )

5 Thanksgiving is a..........seasonal...........festival held in the USA and some other countries ( season)

6 We have become regular.........attendents..............at Da Lat Flower Festival ( attend)

7 There are a lot of cultural and........artistic...............activities held as part of this festival ( art)

8 Tet holiday is the most important..............celebration.................for Vietnamese people ( celebrate )

9 Hoi Mua Festival is held by people of ethnic..........minority.................in Phu Yen Province ( minor )

10 It is very...........joyful............... to participate in Songkran Water Festival ( joy)

Cho qùy tím vào:

- Chuyển đỏ: HCl, H2SO4 (1)

- Chuyển xanh: NaOH, BA(OH)2 (2)

trộn nhóm (1) vào nhóm (2)

- Xuất hiện kết tủa trắng thì chất ở nhóm (1) là H2SO4, chất ở nhóm (2) là BaOH)2

- Còn lại ở nhóm(1) là HCl, nhóm (2) là NaOH