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 well.

Question 2

Which of the following compounds is most likely to be a nonelectrolyte when dissolved in water?

Accepted Answer

C_6H_{12}$$O_6$$

Question 3

A student mixes solutions of $$\mathrm{$$AgNO_3$$}$$ and $$\mathrm{NaCl}. $$What is the net ionic equation for the reaction that occurs?

Accepted Answer

$$\mathrm{Ag^+(aq) + Cl^-(aq) \rightarrow AgCl(s)}$$

Question 4

Which of the following is a correct statement about acids and bases?

Accepted Answer

Acids increase the concentration of $$\mathrm{H^+}$$ ions in water.

Question 5

Which of the following is the best definition of a precipitation reaction?

Accepted Answer

A reaction in which two aqueous solutions form an insoluble solid.

Question 6

What is the oxidation number of sulfur in $$\mathrm{SO_4$^{2-}}$$?

Accepted Answer

$$+6$$

Question 7

Which of the following metals will react with hydrochloric acid to produce hydrogen gas, according to the activity series?

Accepted Answer

Zinc

Question 8

A solution is prepared by dissolving 0.5 mol of $$\mathrm{NaCl} in $$enough water to make 1.0 L of solution. What is the molarity of the solution?

Accepted Answer

$$0.5\ \mathrm{M}$$

Question 9

Which of the following best describes the process of dilution?

Accepted Answer

Adding solvent to decrease the concentration without changing the number of moles of solute.

Question 10

A titration is performed using 0.100 M $$\mathrm{HCl} to $$neutralize 25.0 mL of $$\mathrm{NaOH}$$ solution. If 30.0 mL of $$\mathrm{HCl} is $$required, what is the concentration of the $$\mathrm{NaOH}$$ solution?

Accepted Answer

$$0.100\ \mathrm{M}$$

Question 11

Which of the following is a correct net ionic equation for the neutralization of hydrochloric acid with sodium hydroxide?

Accepted Answer

$$\mathrm{H^+(aq) + OH^-(aq) \rightarrow H_2O(l)}$$

Question 12

Which of the following statements about oxidation–reduction (redox) reactions is correct?

Accepted Answer

Oxidation and reduction always occur together.

Question 13

What is the sum of the oxidation numbers in the polyatomic ion $$\mathrm{NO_3$^-}$$?

Accepted Answer

$$-1$$

Question 14

Which of the following is a weak electrolyte?

Accepted Answer

CH_3COOH

Question 15

A solution contains 0.20 mol of $$\mathrm{KBr} in 500 mL of $$solution. What is the molarity?

Accepted Answer

$$0.40\ \mathrm{M}$$

Question 16

Which of the following best describes a spectator ion?

Accepted Answer

An ion that is present in solution but does not participate in the reaction.

Question 17

Which of the following reactions will produce a gas as one of the products?

Accepted Answer

$$\mathrm{Na_2CO_3(aq) + 2HCl(aq) \rightarrow 2NaCl(aq) + H_2O(l) + CO_2$(g)}$$

Question 18

If 50.0 mL of 2.0 M $$\mathrm{H_2SO_4} is $$diluted to a final volume of 200.0 mL, what is the final concentration?

Accepted Answer

$$0.50\ \mathrm{M}$$

Question 19

Which of the following best describes the role of water in an aqueous solution?

Accepted Answer

Water is the solvent.

Question 20

Which of the following is the correct balanced molecular equation for the reaction between $$\mathrm{Ba(NO_3$)_2(aq)}$$ and $$\mathrm{Na_2SO_4(aq)}$$?

Accepted Answer

$$\mathrm{Ba(NO_3$)_2(aq) + Na_2SO_4(aq) \rightarrow $$BaSO_4$$(s) + 2NaNO_3(aq)}$$

Reactions in Aqueous Solution: Study Notes for General Chemistry

Study Guide - Practice Questions

Study Guide - Flashcards