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HUONG2020
2 năm trước
Câu 19: Tìm dãy kết quả tất cả đúng về khối lượng(g) của những lượng chất(mol) sau: 0,25mol H2O, 1,75 mol NaCl, 2,5 mol HCl A. 4,5g H2¬O, 102,375g NaCl, 81,25g HCl B. 4,5g H2¬O, 92,375g NaCl, 91,25g HCl C. 5,5g H2¬O, 102,375g NaCl, 91,25g HCl D. 4,5g H2¬O, 102,375g NaCl, 91,25g HCl Câu 20: Tìm dãy kết quả tất cả đúng về khối lượng(g) của những lượng chất(mol) sau: 0,2 mol Cl, 0,1 mol N2, 0,75 mol Cu, 0,1 molO3 A. 7,1g Cl, 2,8g N2, 48g Cu, 3,2g O3 B. 7,1g Cl, 2,8g N2, 48g Cu, 4,8g O3 C. 7,1g Cl, 2,8g N2, 42g Cu, 3,2g O3 D. 7,1g Cl, 3,8g N2, 48g Cu, 3,2g O3 giải thích đầy đủ có phép tính cho 5 sao và tlhn
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