user-avatar
truemanucian
2 năm trước
cho 6,8 gam hỗn hợp gồm Fe và MgO tác dụng vừa đủ với 150 gam dung dịch H2SO4 loãng thu được 1,12 lít khí H2 ( đktc ) a. viết phương trình hóa học xảy ra b. tính khối lượng của Fe , CuO c. Tính nồng độ % của dung dịch H2SO4 loãng trên
Thích Trả lời Chia sẻ

Các câu hỏi liên quan

Fill in the blank with the correct forms of one of the verbs given. A. face, look, get, deal, keep 1. The cinema is so small that it cannot  ………….. up with the increasing demands of local residents. 2. Many British craft villages have to ………….. up to the fact that traditional craft skills are at risk of dying out. 3. It is traditional for artisans in this village ………….. on well with each other. 4. Youngsters in the neighbourhood ………….. forward to the opening of the new sports centre since last week. 5. At present, they ………….. with lots of complaints from customers about the quality of these products. B. Live, turn, break, get, give, keep, come, take, find, go 1. - Has Phuc arrived yet? - No, but I’m sure he …………..  up soon. 2. My aunt never really …………..  over the death of her pet dog. 3. It’s not easy to …………..  up smoking. My uncle has tried to do it lots of times without success. 4. Sorry, I don’t mean to interrupt you. Please …………..  on and finish what you are saying. 5. I enjoyed living in London, but it didn't really …………..  up to my expectations. 6. I’m sorry I’m late, but the car …………..  down on the way here, so I had to phone for a taxi.  7. You were going too fast! I couldn't …………..  up with you. 8. Remember to …………..  out how many people are coming to the party.

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