user-avatar
cathyjm
2 năm trước
Cho 0,94 gam hỗn hợp X gồm Al và MgO tác dụng với dung dịch HCl 10% (D=1,05 g/ml) thu được dung dịch A và 0,672 lít khí H2(dktc). a)Tính % theo khối lượng của mỗi chất trong hỗn hợp X. b)Tính thể tích dung dịch HCl ban đầu (biết axit lấy dư 25% so với phản ứng).
Thích Trả lời Chia sẻ

Các câu hỏi liên quan

Sports participation can help children develop social skills that will benefit them(4)_______ their entire lives. They learn to interact not only with other children their age, (5)_______ also with older individuals in their coaches and sports officials. Kids learn leadership skills, team-building skills and communication skills that will help them in school, their future (6)_______ and personal relationships. 1. a. more b. much c. most d. least 2. a. doing b. playing c. paying d. watching 3. a. healthy b. wealthy c. happy d. funny 4. a. for b. on c. at d. throughout 5. a. and b. so c. but d. then 6. a. world b. career c. game d. shape Decide whether the following information is True or False according to the video. New York City is the most populous city in the world. A. True B. False There are only tall buildings and skycrapers in New York City. A. True B. False Times Square is regarded as “The Crossroads of the World”. A. True B. False The Statue of Liberty is a present from the people of England to America. A. True B. False The headquarters of the United Nations is located in New York City. A. True B. False Nga's dad wants to visit this city. A. True B. False

2018 © Loga - Không Ngừng Sáng Tạo - Bùng Cháy Đam Mê
Loga Team