Natri tác dụng với khí clo theo phản ứng: Na + Cl2 → NaCl. Khối lượng NaCl thu được từ 46 gam Na là A: 5,85 gam. B: 11,7 gam. C: 117 gam. D: 58,5 gam.

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VII.Arrange thefollowing words into the completed sentences: 1. like/ you/ to/ Would/ play/ table tennis/ ? ________________________________________________________________________ 2. She/ bought/ lots/ of souvenirs/ last summer vacation. ________________________________________________________________________ 3. yesterday / to / My / the / went / father / bookstore. ______________________________________________________________________ 4. on / you / What / like / to / see / TV / would/ you? ______________________________________________________________________ 5. health / our / very / Oranges / for / good /are. ______________________________________________________________________ 6. in / plays / the / She /baseball /afternoon /usually. ______________________________________________________________________ 7. go / tonight / movies / you / Would / like / to / to / the? ______________________________________________________________________ 8. wash / must / spinach / carefully / the / You. ______________________________________________________________________ 9. sports / He / the / in / often / plays / evening. ______________________________________________________________________ 10. go/ to/ dentist/ you/ to/ ought/ the. ______________________________________________________________________ 11. TV programs / like / kinds/ watch/ to/ What/ would/ of? ______________________________________________________________________ 12. new/ book/ last week/ a / I /bought ______________________________________________________________________ 13. diet/ You/ have/ should/balanced/ a . ______________________________________________________________________ 14. see/ Ba/ is/ with/ parents/ detective movie/ a/ his/ tonight/ going/ to. ______________________________________________________________________ 15. yesterday/ sick note/ me/wrote/ for/ a/ My mother. ______________________________________________________________________ 16. the/ TV/ Most/ teenagers/ around/ world/ like / watching. ______________________________________________________________________ 17.food/ my/ chicken/ is/ favorite. ______________________________________________________________________ 18. chicken/ like/ and/ does/ I /so/ Hoa. ______________________________________________________________________________ 19. last summer/ She/ souvenirs/ vacation/ a lot of/ bought. ______________________________________________________________________________