Which of the reactions are exothermic? 2 Mg(s)+O,(g) 2 MgO(s) + heat NH3 (g) + HC1(g) NH,C1(s) + heat AgCl(s) + heat → Ag* (aq) + Cl¯ (aq) 2 Fe,03 (s) + 3 C(s) + heat 4 Fe(s) + 3 CO,(g) C(graphite) + 0,(g) CO,(g) + heat CH,(g) + 2 0,(g) → CO,(g) +2 H,0(1) + heat

Which of the reactions are exothermic? 2 Mg(s)+O,(g) 2 MgO(s) + heat NH3 (g) + HC1(g) NH,C1(s) + heat AgCl(s) + heat → Ag* (aq) + Cl¯ (aq) 2 Fe,03 (s) + 3 C(s) + heat 4 Fe(s) + 3 CO,(g) C(graphite) + 0,(g) CO,(g) + heat CH,(g) + 2 0,(g) → CO,(g) +2 H,0(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?
2 Mg(s)+O,(g)
2 MgO(s) + heat
NH3 (g) + HC1(g) NH,C1(s) + heat
AgCl(s) + heat
→ Ag* (aq) + Cl¯ (aq)
2 Fe,03 (s) + 3 C(s) + heat 4 Fe(s) + 3 CO,(g)
C(graphite) + 0,(g) CO,(g) + heat
CH,(g) + 2 0,(g)
→ CO,(g) +2 H,0(1) + heat

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