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Which of the reactions are exothermic? Which of the reactions are exothermic? NH3(g)+HCl(g)NH4Cl(s)+heat2Mg(s)+O2(g)2MgO(s)+heatAgCl(s)+heatAg+(aq)+Cl(aq)C(graphite)+O2(g)CO2(g)+heat2Fe2O3(s)+3C(s)+heat4Fe(s)+3CO2(g)CH4(g)+2O2(g)CO2(g)+2H2O(l)+heat

Which of the reactions are exothermic?

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Which of the reactions are exothermic? NH3(g)+HCl(g)NH4Cl(s)+heat2Mg(s)+O2(g)2MgO(s)+heatAgCl(s)+heatAg+(aq)+Cl(aq)C(graphite)+O2(g)CO2(g)+heat2Fe2O3(s)+3C(s)+heat4Fe(s)+3CO2(g)CH4(g)+2O2(g)CO2(g)+2H2O(l)+heat

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