Cho 2,24 lít khí CO2 (đktc) vào 300ml dung dịch NaOH 1M, biết sản phẩm chỉ tạo muối Na2CO3. Hỏi sau phản ứng trong dung dịch có chứa những chất nào và khối lượng mỗi chất là bao nhiêu?

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Choose the words whose underlined part is pronounced differently from that of the others in each group 1. A. pottery B. local C. control D. fold 2. A. artisan B. establish C. attraction D. handicraft 3. A. environment B. environmental C. entertainment D. document 4. A. helped B. struggled C. remarked D. watched 5. A. chairs B. suitcases C. things D. calculators 6. A. endangered B. generation C. accept D. memorable 7. A. traditional B. graduation C. handicraft D. grandparent 8. A. environment B. repeat C. embroider D. transfer 9. A. pottery B. opinion C. communicate D. behavior 10. A. handicraft B. publish C. remind D. historical 11. A. pottery B. product C. workshop D. conical 12. A. surface B. layer C. frame D. birthplace 13. A. weather B. thread C. together D. rather 14. A. historical B. system C. landscape D. business 15. A. carved B. impressed C. embroidered D. weaved 16. A. attraction B. artisan C. frame D. handicraft 17. A. drumhead B. illustration C. earplug D. drugstore 18. A. strip B. visual C. artistic D. remind 19. A. thread B. treat C. pleasure D. deadline 20. A. embroider B. preserve C. benefit D. effect 21. A. east B. head C. street D. season 22. A. although B. southern C. theatre D. these 23. A. developed B. located C. founded D. completed 24. A. capital B. liberty C. empire D. mingle 25. A. famous B. neighbour C. harbour D. southern 26. A. surface B. attraction C. lacquerware D. artisan 27. A. layer B. artisan C. frame D. place 28. A. drum B. culture C. museum D. sculpture 29. A. weave B. treat C deal D. drumhead 30. A. although B. authenticity C. through D. tablecloth