11. From the balanced molecular equations, write the complete ionic and net ionic equations for the following: (a) K2C204(aq) + Ba(OH)2(aq) — 2KOH(aq) + BaC204(s)
(6) Pb(NO3)2(aq) + H2SO4(aq) — PbSO4(s) + 2HNO3(aq)
(c) CaCO3(s) + H2SO4(aq) — CaSO4(s) + CO2(g) + H2O(1)

Calculate the ratio of h+ ions to oh– ions at a ph = 7. find the concentration of h+ ions to oh– ions listed in table b of your student guide. then divide the h+ concentration by the oh– concentration. record this calculated ratio in table a of your student guide. compare your approximated and calculated ratios of h+ ions to oh– ions at a ph = 7. are they the same? why or why not? record your comparison in table a. what is the concentration of h+ ions at a ph = 7? mol/l what is the concentration of oh– ions at a ph = 7? mol/l what is the ratio of h+ ions to oh– ions at a ph = 7? : 1

Drug abuse will not lead to physical and psychological dependence. true or false ?

12. calculate the hydroxide ion concentration of a solution with ph = 3.25. show all calculations leading to an answer