meganmcd948 meganmcd948 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
