Tham Khảo link nhé !! :
https://hoc24.vn/hoi-dap/tim-kiem?id=233299&q=B%C3%A0i%201%20%28SGK%20trang%2069%29C%C3%B3%20nh%E1%BB%AFng%20kh%C3%AD%20sau%3A%20N2%3B%20O2%3B%20Cl2%3B%20CO%3B%20SO2.%20%20H%C3%A3y%20cho%20bi%E1%BA%BFt%3A%20%20a%29%20Nh%E1%BB%AFng%20kh%C3%AD%20n%C3%A0o%20n%E1%BA%B7ng%20hay%20nh%E1%BA%B9%20h%C6%A1n%20kh%C3%AD%20hi%C4%91ro%20v%C3%A0%20n%E1%BA%B7ng%20hay%20nh%E1%BA%B9%20h%C6%A1n%20b%E1%BA%B1ng%20bao%20nhi%C3%AAu%20l%E1%BA%A7n.%20%20b%29%20Nh%E1%BB%AFng%20kh%C3%AD%20n%C3%A0o%20n%E1%BA%B7ng%20hay%20nh%E1%BA%B9%20h%C6%A1n%20kh%C3%B4ng%20kh%C3%AD%20v%C3%A0%20n%E1%BA%B7ng%20hay%20nh%E1%BA%B9%20h%C6%A1n%20bao%20nhi%C3%AAu%20l%E1%BA%A7n.
