13) What is the term for a reaction that proceeds by releasing heat energy? N2(g)+3H2(g)2NH3(g)+92KJ A) exothermic reaction B) precipitation reaction C) isothermal reaction D) endothermic reaction E) single displacement reaction 14) What is the term for a reaction that absorbs heat while proceeding? like: N2(g)+O2(g)+43.3kcal2NO(g) A) isothermal reaction B) endothermic reaction C) single displacement reaction D) exothermic reaction E) precipitation reaction 15) Tell if the following single replacement reaction will happen or not. 2NaCl(aq)+F2(g)2NaF(s)+Cl2(g) A) Yes. B) No. C) Can't tell. 17) Use the activity serie, Li>K>Ba>Sr>Ca>Na>Mg>Al>Mn>Zn>Cr>Fe>Ni>Sn>Pb>H>Cu>Hg> Ag>Pd>Pt>Au, tell if the following reaction will happen or not. 2HCl(aq)+Au(s)AuCl2(aq)+H2(g) A) No. B) Yes C) Can't tell. 18) Use the activity serie, Li>K>Ba>Sr>Ca>Na>Mg>Al>Mn>Zn>Cr>Fe>Ni>Sn>Pb>H>Cu>Hg> Ag>Pd>Pt>Au, tell if the following reaction will happen or not. If yes, what are the products? 2HCl(aq)+Zn(s)ZnCl2 (aq) +H2 (g) A) No. B) Can't tell. if the reactant happens or not. C) Yes. The products are ZnH2 and Cl2. D) Yes. The products are ZnCl2 and H2. E) Yes. The products are ZnH and H2