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Of the groups of elements below, which are most likely to gain electrons to become anions? a. alkali metal b. boron group c. halogen d. transition metal
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650.j is the same amount of energy as? 2720cal1550cal650.cal2.72cal
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Suppose you mix one mole of sulfuric acid (h2so4) with 1 mole of sodium hydroxide(naoh). why does the ph of the solution remain below 7? ( explain so i can get better understanding! )
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ở 100 độ c 1 phản ứng kết thúc sau 3 giờ. hệ số nhiệt độ phản ứng là 3 khi tăng nhiệt độ phả ứng 120...
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