5 CHEM 1411, chapter 4, exercises 24. Based on the solubility rules, which one of the following should be solublein water?
25. Hydrogen is oxidized in the following chemical reaction. H2+ Cl2 2HCl
26. Based on the solubility rules, which one of the following should be solublein water?
27. Which of the following represents a hydrogen displacement reaction? A) 2C2H6(g) + 7O2(g) 4CO2(g) + 6H2O(l) B) 2KBr(aq) + Cl2(g) 2KCl(aq) + Br2(l) C) N2(g) + 3H2(g) 2NH3(g) D) CaBr2(aq) + H2SO4(aq) CaSO4(s) + 2HBr(g) E) 2Al(s) + 3H2SO4(aq) Al2(SO4)3(aq) + 3H2(g) 28. Batteries in our cars generate electricity by the following chemical reaction. Pb + PbO2+ 2H2SO42PbSO4+ 2H2O What is the reducing agent in this process? 29. Identify the majorionic species present in an aqueous solution of Na2CO3. A) Na2+, CO32–B) Na2+, C2 –, O3C) Na+, C4+, O32–D) Na+, C+, O2–E) Na+, CO32–