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sepduong247
2 năm trước
Dãy chất nào sau đây gồm các oxit kết hợp được với dung dịch KOH A. CuO, CO2, Na2O B. CO₂ Na2O, SO3 C. SO3, P₂O5, CO₂ D. Na2O, BaO, CO₂
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