Chủ đề:
Chương 5. Nhóm HalogenCâu hỏi:
Bằng phương pháp hoá học, hãy nhận biết các hoá chất đựng trong các lọ mất nhãn sau: KCl, KBr, KOH, HCl, HBr
What's the benefit of doing exercise regularly? a, How do you often do exercise? b, Do you like eating apples? -> Name three healthy benefit of eating apples? c, What are the most common side offed acupuncture? d, Do you think eating what you like is good for your healthy?