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vub3600
2 năm trước
Cho 0,585 gam Một kim loại kiềm tác dụng với nước dư, thu được 0,168 lít khí H2 thoát ra ở dktc a) Xác định tên và vị trí của kim loại kiềm b) Anion của nguyên tố nào có điện tích 1- có cùng cấu hình vs cation của kim loại vừa xác định được
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Các câu hỏi liên quan

Viết lại đoạn văn phản hồi giúp mình: Dear Sir or Madam, Two days ago I went to your supermall to do some shopping and got injured by a minor accident. I am writing to inform you how this accident took place and what you can do to prevent such accidents in the future. I am hoping that you would take steps so that no other shopper fall victim to similar incidents. I am Shahin Shah and I live a few blocks away from your supermall. I have been a loyal customer to your business for more than 4 years. In relation to the specifics of the event, I went to your store to buy some fresh vegetables and fruits on 27th September at around 7:30 pm. Just after I took a shopping cart, a woman with her groceries collided with me. I cannot say that it was entirely her fault as she was over 70 years old and sufficient light was not present at that corner of the mall. In addition, the floor was slippery. So, this unavoidable accident occurred as the lack of attention by your management. Though this was a minor accident, it could have been worse! Hundreds of people, including children and senior citizens go shopping at your mall every day. It is your responsibility to maintain this place to avoid such a mishap. Please arrange more electric bulbs at that corner of your shop and dry the wet floor immediately to avoid unexpected accidents. I hope you will give immediate attention to this matter. Yours faithfully, Shahin Shah

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