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Choose whether the reaction is exothermic or endothermic. 4Al(s) + 3020w 2Al2O3(s) --Select--
V
2H2(g) + O2(g) → 2H2O(9) --Select--
N2(g) + O2(g) - 2NO(g) -Select--

Choose whether the reaction is exothermic or endothermic.

4Al(s) + 3020w 2Al2O3(s) --Select--
V
2

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Choose whether the reaction is exothermic or endothermic. 4Al(s) + 3020w 2Al2O3(s) --Select-- V 2H2(g) + O2(g) → 2H2O(9) --Select-- N2(g) + O2(g) - 2NO(g) -Select--

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Another question on Chemistry

Choose whether the reaction is exothermic or endothermic. 4Al(s) + 3020w 2Al2O3(s) --Select--
V
2H2(g) + O2(g) → 2H2O(9) --Select--
N2(g) + O2(g) - 2NO(g) -Select--