Question

Consider the following reaction: 2Mg(s)+O2(g)→2MgO(s), ΔH=−1204kJ. Is this reaction exothermic or endothermic? How do you calculate the amount of heat transferred when 2.4 grams of Mg(s) reacts at constant pressure?

Answer 1

Answer:

The reaction is clearly exothermic reaction.

Explanation:

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