Chủ đề:
Ôn tập học kỳ IICâu hỏi:
Cho a gam dung dịch H2SO4 loãng nồng độ C% tác dụng hoàn toàn với hỗn hợp 2 kim loại K và Fe ( Lấy dư ). Sau phản ứng, khối lượng khí sinh ra là 0,04694 a (g). Tìm C%
II. Give the correct form of the words in brackets.
EX. Knowing English well is very (use).......... -> useful
1. The .......... of the experiment is about 20 minutes (LONG)
2. She sent her best wishes for my future .......... (HAPPY)
3. The .......... of this tree are very green and beautyful. (LEAF)
4. Every year I make a .......... and every year I break it. (RESOLUTE)
5. I don't belive that the .......... can bring us good or bad luck. (FOOT)
6. That's a .......... designer. She has a lot of new udeals. (CREATE)
7. Nhung is quiet, but sometimes she becomes .......... (TALK)
8.They're famous football .......... (PLAY)
9. They are .......... about their lesson. (TALK)
10. She told me she would come so be .......... (PATIENCE)