Given the balanced equation:
4fe(s) + 3o2(g) ==> 2fe2o3(s) + 1640 kj
which phrase best describes this reaction?
(1) endothermic with dh = +1640 kj
(2) endothermic with dh = -1640 kj
(3) exothermic with dh = +1640 kj
(4) exothermic with dh = -1640 kj

here is table 2-2:

country

percent of eligible voters that voted

rank

united states

44.9%

138

canada

60.1%

107

costa rica

84.6%

14

hungary

66.9%

82

japan

57.0%

118

egypt

27.7%

159

south africa

85.5%

10

ans is no, the data set cannot be plotted as a single circle graph