1)I / have / come / idea / our / environment / project.
2)we / can't / see / starts / night / due / light pollution.
3) if / i / be / you,i / wear / earplugs / when / go / concert
4) Scotland / be / famous / rich cultures / as / well / amazing / natural beauty
5 ) we / decide/ stay / ho chi minh city / for / three more days
6)international meeting / economic development / take place / singapore / last week
7) david / told / catherine / he / unable / read / wirting
1)I / have / come / idea / our / environment / project.
2)we / can't / see / starts / night / due / light pollution.
3) if / i / be / you,i / wear / earplugs / when / go / concert
4) Scotland / be / famous / rich cultures / as / well / amazing / natural beauty
5 ) we / decide/ stay / ho chi minh city / for / three more days
6)international meeting / economic development / take place / singapore / last week
7) david / told / catherine / he / unable / read / wirting
Đốt cháy hoàn toàn 2,3 g kim loại Na trong bình đựng khí õi được Natrioxit(Na20)
a viết cthh xảy ra va tính khối lượng Natri oxit(Na20) tạo thành
b hòa tan toàn bộ sản phẩm trên vào nước thu được dung dịch A. Tính khối lượng chất tan tạo thành dung dịch A vào dung dịch A (Na =23,O=16,H=1)