Question 1

Which of the following best describes a weak acid in aqueous solution?

Accepted Answer

It is partially ionized in aqueous solution.

Question 2

Which equation correctly describes what happens when $$\mathrm{Na_2CO_3}$$ dissolves in water?

Accepted Answer

$$\mathrm{Na_2CO_3(s) \rightarrow 2Na^+(aq) + CO_3$^{2-}(aq)}$$

Question 3

Identify the spectator ions in the precipitation reaction: $$\mathrm{$$CaCl_2$$(aq) + 2AgNO_3(aq) \rightarrow 2AgCl(s) + Ca(NO_3$)_2(aq)}$$

Accepted Answer

Ca$$^{2+}$$ and NO$$_3^-$$

Question 4

Which of the following substances will be least soluble in water?

Accepted Answer

FeCO$$_3$$

Question 5

What is the chemical formula for the precipitate that will form when CuSO$$_4(aq) $$and Pb(NO$$_3$$)$$_2(aq) $$are mixed?

Accepted Answer

PbSO$$_4$$

Question 6

In the neutralization of HNO$$_3$$ with KOH, what is the net ionic equation?

Accepted Answer

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

Question 7

A student mixes solutions of Na$$_2CO$_3$$ and CaCl$$_2. $$What is the net ionic equation for the formation of the precipitate?

Accepted Answer

$$\mathrm{Ca$$^{2+}$$(aq) + CO_3$^{2-}(aq) \rightarrow $$CaCO_3$$(s)}$$

Question 8

Which of the following best explains why AgNO$$_3 is $$often used to test for the presence of chloride ions in a solution?

Accepted Answer

AgNO$$_3$$ forms a white precipitate with chloride ions, indicating their presence.

Question 9

Which of the following is a correct statement about spectator ions?

Accepted Answer

They are present in the same form on both sides of the equation.

Question 10

A solution contains both Ba$$^{2+}$$ and SO$$_4$$^{2-}$$. What will happen when these ions are present together in water?

Accepted Answer

A precipitate of BaSO$$_4$$ will form.

Question 11

Which of the following is true about the solubility of FeCO$$_3 in $$water?

Accepted Answer

FeCO$$_3 is $$only slightly soluble in water.

Question 12

Which of the following best describes the process of neutralization?

Accepted Answer

An acid reacts with a base to produce water and a salt.

Question 13

Which of the following is a correct net ionic equation for the reaction between HCl(aq) and NaOH(aq)?

Accepted Answer

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

Question 14

Which of the following is a property of strong acids?

Accepted Answer

They are completely ionized in aqueous solution.

Question 15

Which of the following compounds will NOT form a precipitate when mixed with Na$$_2SO$_4$$?

Accepted Answer

KCl

Chemistry Practice Test 2 – College-Level Study Guidance

Study Guide - Practice Questions