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Consider these reactions, whereM represents a generic metal. 2 M(s)+6 HCI(aq)2 MC, (aq)+3 H,(g) 1. AH -881.0 kJ 2. HCI(g)HCI(
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The question is based on Hess law Concept which states that net energy change remains same whether the reaction takes place iGiven reactions: 2MCs) + 6HCl(aq) 2M (Izlag) + 3H2(g) - 1;AH, HCICg) & Hal (aq) - DH₂ H2(g) + Cl2lg) → 2HCl (g) ② ; DHz MCiz

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