Bài 2 : Bằng phương pháp hóa học hãy nhận biết các chất Ba(NO3)2, K2CO3, CaCO3

Bài 3 : Chỉ dùng 1 thuốc thử hãy nhận bt các chất rắn KCl, Na2CO3, BaCO3. Vt PTHH ( nếu có )

Bài 1 : Cho dãy các chất, cặp chất nào phản ứng được, viết PTHH ( nếu có ) a) K3PO4, HCl, NaHCO3, BaSO4, NaNO3, K2CO3 b) BaSO4, KHCO3, H2SO4, NaCO3, Mg3(PO4)2, CaCO3

I. Words form 1. I was so happy because of their______ ( COMPLIMENTARY ) 2. A______ hotel will be built in the town next month ( LUXURY ) 3. Most of American_______ got two or more television sets at home ( HOUSE ) 4. A thief was_____ by a witness ( DESCRIPTION )

I. Write complete sentences using the words given :

Dear Tom,

1. We/ invite/ lots of friends/ relatives

->

2. We/ hope you will/ to join us/ dinner and the festivities/ meet everybody

->

3. Please come/ our house/ about 5PM/ if you can and/ meet everybody

->

4. It/ should/ a lot/ fun

->

1. The kilt is mine. I bought it yesterday -> The kilt which________ 2. He wore his plaid shirt three momths ago -> He hasn't___________

1. His parents were_______that he failed the final examinations ( DISAPPOINT )

2. You should listen to the teacher________. ( CARE )

3. Mary is made a good _______ on this matter ( DECIDE )