Bài 1:hoà tan hết 19,7g Baco3 trong dd h2so4 20% vừa đủ a) nêu hiện tượng xảy ra b) tính thể tích khí tạo ra c) tính khối lượng muối sinh ra Bài 2:viết các phương trình hoá học thực hiện giữa phản ứng sau S-so2-h2so4- cuso4-so2-h2so4-h2-fe- fecl2

Vẽ cái trong ảnh , đám mây ko nhất thiết phải vẽ :3 - ai có tâm thì tô màu cx đc ko tô màu cx chả sao - app hay giấy đều được - đừng vẽ ẩu nhá N/L : Hôm nay 2-9 do dịch nên ko được đi chơi chán quá :<, tối nay có coi bóng đá khum ? không có Đoàn Văn Hậu thi đấu buồn ghia ;<<

Giải với giải thích giúp em ạ cảm ơn

Giúp với ạ . Bài là viết lại câu nghĩa ko thay đổi . Đang cần gấp thanks trc ❤️

Khó quá, giúp em vớiiiiiiiiiiiiiiiiiiiiiiii

cho hàm số y=(m-1)x+2m^2+3 (m là tham số;m khác 1) Tìm tất cả các giá trị của m để đồ thị hàm số đi qua điểm M(1;5)

Vẽ mầm cầm bánh kem hoặc cali chúc mừng sinh nhật Hôm nay sinh nhật mk vui qua

1. Air__________ is one of the problems that people have to deal to with. (pollute) 2. You should buy this book. It’s very__________. (inform) 3. Covid 19 is a__________ pandemic which has caused a lot of deaths. (danger) 4. He apologized for the__________ he had caused. (convenient) 1. For your__________, the library is on the third floor. (inform) 2. This is one of the best__________ films showing the lives of working people. (document) 3. The government has introduced some__________ measures to reduce unemployment. (effect) 4. He is a__________ boy. He is always asking questions. (curiosity) 1. English is now an effective medium of international__________. (communicate) 2. All of us have to be__________ when going on the street. (care) 3. She answered all my questions__________. She got the highest mark. (logic) 4. This fashion__________ wants to modernize the traditional Ao Dai. (design) 1. Traditional__________ are a good source of fun and entertainment. (celebrate) 2. __________ is now a serious problem in Viet Nam. (Forest) 3. Britney Spear is not only a great__________, but also a talented singer. (perform) 4. The weather today was__________ hot. (extreme)

1. I found your present__________. (interest) 2. A holiday by the sea is__________ than a holiday in the mountains. (good) 3. We should prepare food__________ before turning on the stove. (care) 4. Please phone this number for more__________. (inform) 1. Do you think __________ saucers are human beings imagination? (FLY) 2. We should have our water pipes checked __________ . (REGULAR) 3. Many people are very concerned about the __________ of the rainforests. (DESTROY) 4. She was_____________ greeted by Vietnamese people. (warm) 1. My brother is a stamp ______ COLLECT 2. Vietnamese people are very warm and ______ FRIEND 3. ______, the typhoon caused serious damage to the village. LUCKY 4. The local government seems to ______ the town’s park as they never spend the funds on upkeep or improvements. MANAGEMENT

1. Air__________ is one of the problems that people have to deal to with. (pollute) 2. You should buy this book. It’s very__________. (inform) 3. Covid 19 is a__________ pandemic which has caused a lot of deaths. (danger) 4. He apologized for the__________ he had caused. (convenient) 1. For your__________, the library is on the third floor. (inform) 2. This is one of the best__________ films showing the lives of working people. (document) 3. The government has introduced some__________ measures to reduce unemployment. (effect) 4. He is a__________ boy. He is always asking questions. (curiosity) 1. English is now an effective medium of international__________. (communicate) 2. All of us have to be__________ when going on the street. (care) 3. She answered all my questions__________. She got the highest mark. (logic) 4. This fashion__________ wants to modernize the traditional Ao Dai. (design) 1. Traditional__________ are a good source of fun and entertainment. (celebrate) 2. __________ is now a serious problem in Viet Nam. (Forest) 3. Britney Spear is not only a great__________, but also a talented singer. (perform) 4. The weather today was__________ hot. (extreme)