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17-10-2022
Chemistry

contestada

14. What is the amount of heat required to melt 43
grams of solid magnesium oxide at its melting
point? The heat of fusion is 1.9 x 10³ J/g.
A) 2.3 x 10-2 J
C) 8.2 x 104 J
B) 4.4 x 10¹ J
D) 3.4 x 105 J

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