Which of the reactions are exothermic? O 2 Mg(s) + O2(g)2 MgO(s) + heat>O NH, (g) + HCI(g) → NH,CI(s) + heatO AgCI(s) + heatAg*(aq) + CI (aq)O 2 Fe,0,(s) + 3 C(s) + heat4 Fe(s) + 3 CO,(g)C(graphite) + 0,(g) → CO, (g) + heatO CH,(g) + 20,(g) → CO,(g) + 2H,O(1) + heat

Exothermic reactions are reactions or processes that release energy, usually in the form of heat or…

O2 Mg(s) + 0,(g) → 2 MgO(s) + heat O NH, (g) + HCI(g) NH,Cl(s) + heat AgCl(s) + heat → Ag*(aq) + CI (aq) 2 Fe,0,(s) + 3 C(s) + heat 4 Fe(s) + 3 CO,(g) C(graphite) + 0,(g) → CO,(g) + heat O CH,(g) + 20,(g) CO,(g) + 2H,O(1) + heat

O2 Mg(s) + 0,(g) → 2 MgO(s) + heat O NH, (g) + HCI(g) NH,Cl(s) + heat AgCl(s) + heat → Ag*(aq) + CI (aq) 2 Fe,0,(s) + 3 C(s) + heat 4 Fe(s) + 3 CO,(g) C(graphite) + 0,(g) → CO,(g) + heat O CH,(g) + 20,(g) CO,(g) + 2H,O(1) + heat

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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Question

Which of the reactions are exothermic?

O 2 Mg(s) + O2(g)
2 MgO(s) + heat
>
O NH, (g) + HCI(g) → NH,CI(s) + heat
O AgCI(s) + heat
Ag*(aq) + CI (aq)
O 2 Fe,0,(s) + 3 C(s) + heat
4 Fe(s) + 3 CO,(g)
C(graphite) + 0,(g) → CO, (g) + heat
O CH,(g) + 20,(g) → CO,(g) + 2H,O(1) + heat

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