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In: Chemistry

Consider the following reaction: 2Mg(s)+O2(g)→2MgO(s)ΔH=−1204kJ Part A Is this reaction exothermic or endothermic? exothermic endothermic SubmitMy...

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

Part A

Is this reaction exothermic or endothermic?

exothermic
endothermic

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Correct

Part B

Calculate the amount of heat transferred when 3.56 g of Mg(s) reacts at constant pressure.
ΔH =   kJ  

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Part C

How many grams of MgO are produced during an enthalpy change of -231 kJ ?
m =   g  

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Part D

How many kilojoules of heat are absorbed when 40.7 g of MgO(s) is decomposed into Mg(s) and O2(g) at constant pressure?
ΔH =   kJ  

Solutions

Expert Solution

Answer:-

The answer is given in the image,

queen_honey_blossom answered 2 years ago
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