Consider the following reaction: 2Mg(s)+O2(g)→2MgO(s)ΔH=−1204kJ a. Is this reaction exothermic or endothermic? b. Calculate the amount...

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Consider the following reaction: 2Mg(s)+O2(g)→2MgO(s)ΔH=−1204kJ a. Is this reaction exothermic or endothermic? b. Calculate the amount...

Consider the following reaction:
2Mg(s)+O2(g)→2MgO(s)ΔH=−1204kJ

a. Is this reaction exothermic or endothermic?

b. Calculate the amount of heat transferred when 2.6 gg of Mg(s)Mg(s) reacts at constant pressure.

Express your answer using two significant figures.

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Answer 1

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Answer #1

2 M9 (S) + 02 (9) 2 Mgo CS) AH = -1204 KT a) Enthalpy ct reactica is: ove ie Heat energy is released, The reaction is EXOTHER b) 2 mole ct MS reacted -> 1204 KJ ct Heat trausterea, (2X24) s ct Mg reacted 1204 KJ ct Heat trausfeved, 2.6 9 ot M9 reacted

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Answer 2

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Consider the following reaction: 2Mg(s)+O2(g)→2MgO(s)ΔH=−1204kJ a. Is this reaction exothermic or endothermic? b. Calculate the amount...

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Consider the following reaction: 2Mg(s)+O2(g)→2MgO(s)ΔH=−1204kJ a. Is this reaction exothermic or endothermic? b. Calculate the amount...