Cho lá kẽm có khối lượng 50g vào dung dịch sunfat.Sau một thời gian phản ứng kết thúc thì khối lượng lá kẽm là 49,82g.Khối lượng kẽm đã tác dụng

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VI. Rewrite the sentences, using “ S + tobe adjectives + Noun clause”. (Làm tương tự ví dụ mẫu) Ex: You want to know more about 3 R. I am very pleased. => I am (very) pleased that you want to know more about 3 R. 1. You are interrested in protecting environment. He is delighted. - ……………………………………………………………………………….…… 2. They could save money from reused things. They are very happy. - ……………………………………………………………………………….…… 3. We won the first prize in collecting cans. My teacher feels pleased. - …………………………………………………………………………….……… 4. The rivers are becoming heavily polluted. We are worried. - …………………………………………………………………………….……… 5. The Y & Y is having a plan on recycling used paper. I am glad. - ……………………………………………………………………………….…… 6. She must empty the kitchen garbage. She is not pleased. - …………………………………………………………………………….……… 7. I passed all the exams. My parents are very happy. - …………………………………………………………………………….……… 8. I was very happy. I received your letter this morning . -…………………………………………………………….……………….………