Câu 1: Cho 9,96 gam hỗn hợp gồm Na, Na2O, K2O vào H2O dư, thu được 100 ml dung dịch X và V lít H2 (đktc). Cho 100 ml dung dịch HNO3 3M vào X, thu được 200 ml dung dịch Y có pH = 1. Cô cạn Y thu được 25,72 gam chất rắn khan. Giá trị của V là A. 0,112. B. 0,224. C. 0,672. D. 0,896. 2.Hoà tan hoàn toàn 8,94 gam hỗn hợp gồm Na, K và Ba vào nước, thu được dung dịch X và 2,688 lít khí H2 (đktc). Dung dịch Y gồm HCl và H2SO4, tỉ lệ mol tương ứng là 4: 1. Trung hoà dung dịch X bởi dung dịch Y, tổng khối lượng các muối được tạo ra là

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I. Complete the sentences using will (‘ll) or be going to “I’ve got a headache.” “Wait there and I __________get you an aspirin.” “I’ve decided to repaint this room.” “What color _________you __________paint it?” “I don’t know how to use this camera.” “It’s quite easy. I__________ show you” “Are you going shopping?” “Yes, I_____________buy something for dinner.” “Did you post that letter for me?” “Sorry. I completely forgot. I______do it now.” II.Rewrite the following sentences , using BE GONG TO +V 1. He intends to work for a foreign company. He’s _________________________________________________________________________ 2. They plan to give a party this weekend. They’re ______________________________________________________________________ 3.Mary intends to sell her old car. Mary’s _______________________________________________________________________ 4.Does your son intend to play tennis after school? Is your son ___________________________________________________________________? 5. They intended to travel to Paris, but they had to cancel their trip. They were _____________________________________________________________________ 6. She intended to call you yesterday, but she was too busy to call . She was _______________________________________________________________________ 7.She has an intention of traveling around the world. She’s _____________________________________________________________________ 8. We have intention of studying abroad. We’re _____________________________________________________________________ 9. His intention is to watch a football match on TV this evening. He’s _______________________________________________________________________ 10. Their intention is to give a party next Saturday. They’re ______________________________________________________________________