Cho một bình điện phân chứa dung dịch Đồng sunphat. Dòng điện chạy qua trong 5 phút đầu lượng đồng bám trên cực âm là 1,5g . Tính lượng đồng bám trên cực âm khi cho dòng điện như thế chạy qua trong thời gian 1 giờ?

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1. “ Do you have any appointment ?” Martin asked me…………………………………………………………………… 2. “ Turn off the lights when you go out” Nick demanded Rachel ………………………………………………………… 3. “ Please turn up the volume , Nga ” -> Nga’s grandmother suggested ………………………………………………… 4. “ If you don’t tidy up your room right now, I will punish you” . -> My mum threatened ……………………………………………………………… 5.“ Jessica waits until the children have fallen asleep before she starts cooking today” They said. ……………………………………………………………………………… 6. “ Would you like to come to our house for dinner next week? ” Tom invited me ……………………………………………………………………… 7. “I will help my mum with housework this weekend ” Lan promised…………………………………………………………………………………………… 8. “ I am sorry that I have played the music loud at night.” The boy apologized to his neighbor.………………………………………………………… 9. “ Where are you going for your holiday tomorrow?” Henry asked John……………………………………………………………… 10. “Aren’t you going to get back from HCM City ? ” She asked him…………………………………………………………