What is the net ionic equation for the reaction: Pb (NO_3)_2 (aq) + 2 KCl(aq) ri

Question

What is the net ionic equation for the reaction: Pb (NO_3)_2 (aq) + 2 KCl(aq) rightarrow PbCl_ (s) + 2KNO_ (aq)? (A) Pb^2- (aq) + 2NO^-_ (aq) + 2K^(aq) + 2Cl^- (aq) rightarrow PbCl_2(s) + 2K^+ (aq) + 2NO^-_3 (aq) (B) Pb^2 (aq) + 2NO^-_3 (aq) + 2KC; (aq) rightarrow PbCl_2 (s) + 2K^+ (aq) + 2NO^-_3 (aq) (C) Pb^2+ (aq) + 2Cl^- (aq) rightarrow PbCl_2 (s) (D) K^+ (aq) + NO^-_3 (aq) rightarrow KNO_3 (aq) What is the molar concentration of the lithium ions in a 1.50. M Li_ PO_4 solution? (A) 6.00 M (B) 4.50 M (C) 1.50 M (D) 0.50 M What is the molar concentration of a 3.50 times 10^2 mL solution that contains 5.43gof KCl? (A) 15.5 M (B) 4.81 M (C) 2.08 M (D) 0.208 M What volume of 10.2 MHCl is required to prepare 50.0 mL of 0.500 M HCl solution? (A) 49.0 mL (B) 4.90 mL (C) 2.45 mL (D) 0.510 mL What is the concentration of a 150 mL phosphoric acid solution that requires 10.0 mL of 0.200 M NaOH to react completely? H_3PO_4(aq) + 3NaOH (aq) rightarrow Na_3 PO_4 (aq) + 3H_2O(l) (A) 10.0 M (B) 0.400 M (C) 0.100 M (D) 0.0444 M For the reaction shown in the diagram, how many moles of oxygen, O_2 are required to produce 1.0 mole of the product? (A) 4.0 (B) 2.0 (C) 1.5 (D) 1.0 H_2 and N_2 react to form NH_3 by the equation: 3H_ (g) + N_2(g) rightarrow 2NH_ (g) If a reaction vessel initially contained 300 H_ molecules and 150 N_2 molecules, which molecules would be if the reaction proceeds completely towards product? How many moles of Al_2O_3 can be produced by the complete reaction of 13.35 g of Al? 4Al (s) + 3O_2(g) rightarrow 2Al_2O_3(s) (A) 6.675 mol (B) 0.9896 mol (C) 0.4948 mol (D) 0.2471 mol What mass of Co_2S_ is required to produce 88.0 g of solid cobalt? 2Co_2S_ (s) + 3Cu(s) rightarrow 4Co(s) + 3CuS_2(s) (A) 160 g (B) 176 g (C) 639 g (D) 9420 g A reaction mixture initially contains 0.250 mol of ZnS and 0.250 mol of O_2. After the mixture has reacted completely, how many moles of the excess reactant are left? 2ZnS(s) + 3O_2(g) rightarrow 2ZnO(s) + 2SO_2 (g) (A) 0.083 mol ZnS (B) 0.167 mol ZnS (C) 0.125 mol O_2 (D) 0.250 mol O_2 A particular yeast ferments glucose (C_6H_12 O_6) and generates ethanol (C_2H_5OH) with an 87.0 % yield. What mass of glucose is required to produce 475 g of ethanol by this process? C_6H_12O_6(aq) rightarrow 2C_2H_5OH(aq) + 2CO_2(g) (A) 808 g (B) 929 g (C) 1.07 times 10^3 g (D) 2.14 times 10^3 g When 5.60 g CaF_2 reacted with excess H_2SO_4, 1.73 g HF was obtained. What is the percent yield? CaF_2 + H_2SO_4 rightarrow 2HF + CaSO_4 (A) 60.3 % (B) 51.3 % (C) 49.8 % (D) 30.9%

Explanation / Answer

Q43.

net ionic equations must contain only the ions reacting, get rid of spectator ions (ions which appears in the left/right)

a)

ions forming precipitate --> Pb+2 and "Cl-

so

Pb+2(aq) + 2Cl-(aq) --> PbCl2(s)

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