Aqueous solution of two reactants listed below are mixed. In which solutions will a precipitate form?A 48.0 L gas cylinder contains 498 g H₂ at 25∘C. What is pressure inside the cylinder? a. Nal(aq) + Pb(NO₃)²(aq) b. H₂SO4(aq) + BaCl₂(aq) c. CaCl₂(aq) + Na2CO₃(aq) d. NaOH(aq) + AgNO₃(aq)