Câu hỏi 2:  tính diện tích hình chữ nhật có chu vi là 76 dm chiều dài là 30 dm

Hoà tan hoàn toàn 5,6 gam Fe vào 200 ml dung dịch HCl 2M .

a) Tìm chất dư, khối lượng chất dư ?

b) Tính thể tích khí H2 tạo ra ở đktc ?

c) Tính nồng độ mol của dung dịch sau phản ứng ?

1. That was the funniest book I’ve ever read! I’ve never read__________________________________________________________

2. The farmer often spends fifteen minutes leading the buffalo to the field every day. It often takes__________________________________________________________ 3. My French friend finds driving on the left difficult. My French friend isn’t used________________________________________________

4. It’s not my responsibility to clean this room. I am not_____________________________________________________________5. My mother would prefer you to smoke in the garden. My mother would rather you________________________________________________

6. When I was in Athens, my Greek pen friend showed me the sights. When I was in Athens, I was________________________________________________

7. Henry regrets being so rude to his boss. Henry wishes__________________________________________________________8. You will receive full information about the course on payments of your fees. As soon as______________________________________________________________9. In the middle of our lunch there was a knock at the door. When we____________________________________________________________ă10. Mary would like to do a course in archaeology. Mary is interested________________________________________________________

Giúp mk c14 vs ạ