Q: What is the net ionic equation for the reaction between aqueous solutions of Na$_2$S and H$_2$SO$_4$?

$\text{S}^{2-}(aq) + 2\text{H}^+(aq) \rightarrow \text{H}_2\text{S}(g)$

Q: Which of the following is the correct net ionic equation for the neutralization of HCl(aq) with NaOH(aq)?

$\text{H}^+(aq) + \text{OH}^-(aq) \rightarrow \text{H}_2\text{O}(l)$

Q: Which of the following is the correct complete ionic equation for the reaction between Pb(NO$_3$)$_2$(aq) and 2KI(aq)?

$\text{Pb}^{2+}(aq) + 2\text{NO}_3^-(aq) + 2\text{K}^+(aq) + 2\text{I}^-(aq) \rightarrow \text{PbI}_2(s) + 2\text{K}^+(aq) + 2\text{NO}_3^-(aq)$

Question 1

Which of the following statements best describes a strong electrolyte in aqueous solution?

Accepted Answer

It completely dissociates into ions and conducts electricity strongly.

Question 2

Which of the following compounds will form a precipitate when solutions of Pb(NO$_3$)$_2$ and KCl are mixed?

Accepted Answer

PbCl$_2$

Question 3

What is the net ionic equation for the reaction between aqueous solutions of Na$_2$S and H$_2$SO$_4$?

Accepted Answer

$	ext{S}^{2-}(aq) + 2	ext{H}^+(aq) ightarrow 	ext{H}_2	ext{S}(g)$

Question 4

A student dissolves 0.50 mol of NaCl in enough water to make 1.0 L of solution. What is the molarity of the solution?

Accepted Answer

$0.50\ 	ext{M}$

Question 5

Which of the following is a nonelectrolyte when dissolved in water?

Accepted Answer

C$_6$H$_{12}$O$_6$ (glucose)

Question 6

Which of the following best describes the process of solvation?

Accepted Answer

The surrounding of solute particles by solvent molecules.

Question 7

A solution is prepared by diluting 50.0 mL of 6.00 M HCl to a final volume of 300.0 mL. What is the final concentration of HCl?

Accepted Answer

$1.00\ 	ext{M}$

Question 8

Which of the following is the correct net ionic equation for the neutralization of HCl(aq) with NaOH(aq)?

Accepted Answer

$	ext{H}^+(aq) + 	ext{OH}^-(aq) ightarrow 	ext{H}_2	ext{O}(l)$

Question 9

Which of the following pairs will NOT form a precipitate when mixed in aqueous solution?

Accepted Answer

KNO$_3$ and NaCl

Question 10

A 25.0 mL sample of 0.200 M NaOH is titrated with 0.100 M H$_2$SO$_4$. What volume of H$_2$SO$_4$ is required to reach the equivalence point? (Assume the reaction is $2	ext{NaOH} + 	ext{H}_2	ext{SO}_4 ightarrow 2	ext{H}_2	ext{O} + 	ext{Na}_2	ext{SO}_4$)

Accepted Answer

$12.5\ 	ext{mL}$

Question 11

Which of the following statements about acids and bases is correct?

Accepted Answer

Acids are proton donors and bases are proton acceptors.

Question 12

Which of the following is a weak electrolyte?

Accepted Answer

CH$_3$COOH

Question 13

Which of the following best describes a metathesis (exchange) reaction?

Accepted Answer

A reaction in which the cations and anions of two compounds exchange partners.

Question 14

A solution contains 0.10 mol of KBr dissolved in 500 mL of water. What is the molarity of the solution?

Accepted Answer

$0.20\ 	ext{M}$

Question 15

Which of the following is a spectator ion in the reaction between aqueous solutions of Na$_2$SO$_4$ and BaCl$_2$?

Accepted Answer

Na$^+$

Question 16

Which of the following best explains why glucose (C$_6$H$_{12}$O$_6$) is a nonelectrolyte?

Accepted Answer

It dissolves in water but does not dissociate into ions.

Question 17

Which of the following combinations will produce a gas when mixed in aqueous solution?

Accepted Answer

Na$_2$S and H$_2$SO$_4$

Question 18

A chemist needs to prepare 250 mL of 0.10 M NaOH from a 1.0 M stock solution. What volume of the stock solution is required?

Accepted Answer

$25\ 	ext{mL}$

Question 19

Which of the following is the correct complete ionic equation for the reaction between Pb(NO$_3$)$_2$(aq) and 2KI(aq)?

Accepted Answer

$	ext{Pb}^{2+}(aq) + 2	ext{NO}_3^-(aq) + 2	ext{K}^+(aq) + 2	ext{I}^-(aq) ightarrow 	ext{PbI}_2(s) + 2	ext{K}^+(aq) + 2	ext{NO}_3^-(aq)$

Chapter 4: Reactions in Aqueous Solution – General Chemistry Study Notes

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