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5 & 15. Energetics & thermochemistry (2)

For each question choose the answer you consider to be the best.1. Which is an exothermic process? A. K(s) → K(g)B. H2O(l) → H+(aq) + OH-(aq)C. Cl(g) + e- → Cl-(g) D. Mg(g) → Mg+(g) + e-2. Which is a correct statement about an endothermic reaction? A. The bonds in the products are stronger than in the reactants and ∆H is positive.

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