Question 1

Which of the following compounds is INSOLUBLE in water according to the solubility rules?

Accepted Answer

Barium sulfate ($\mathrm{BaSO_4}$)

Question 2

Which of the following ions is considered a spectator ion in the reaction: $\mathrm{AgNO_3(aq) + NaCl(aq) \rightarrow AgCl(s) + NaNO_3(aq)}$?

Accepted Answer

$\mathrm{Na^+}$

Question 3

Which of the following is evidence that a chemical reaction has occurred?

Accepted Answer

All of these are evidence of a chemical reaction.

Question 4

What is the net ionic equation for the reaction between aqueous solutions of $\mathrm{Pb(NO_3)_2}$ and $\mathrm{K_2SO_4}$?

Accepted Answer

$\mathrm{Pb^{2+}(aq) + SO_4^{2-}(aq) \rightarrow PbSO_4(s)}$

Question 5

Which of the following compounds will NOT undergo a gas evolution reaction when acid is added?

Accepted Answer

Sodium nitrate ($\mathrm{NaNO_3}$)

Question 6

Which of the following is a correct balanced equation for the reaction of sulfuric acid with sodium hydroxide?

Accepted Answer

$\mathrm{H_2SO_4 + 2NaOH \rightarrow Na_2SO_4 + 2H_2O}$

Question 7

Which of the following statements about redox reactions is FALSE?

Accepted Answer

A reaction involving only acid and base is a redox reaction.

Question 8

Which of the following compounds is SOLUBLE in water?

Accepted Answer

Ammonium nitrate ($\mathrm{NH_4NO_3}$)

Question 9

When the equation $\mathrm{C_3H_8 + O_2 \rightarrow CO_2 + H_2O}$ is balanced, what is the coefficient of $\mathrm{O_2}$?

Accepted Answer

5

Question 10

Which of the following is the correct formula for the phosphate ion?

Accepted Answer

$\mathrm{PO_4^{3-}}$

Question 11

Which of the following best describes a precipitation reaction?

Accepted Answer

A reaction in which a solid forms when two solutions are mixed.

Question 12

Which of the following ions would NOT be present in a solution of sodium sulfate ($\mathrm{Na_2SO_4}$)?

Accepted Answer

$\mathrm{NO_3^-}$

Question 13

Which of the following is the correct net ionic equation for the reaction between $\mathrm{MgCl_2(aq)}$ and $\mathrm{AgNO_3(aq)}$?

Accepted Answer

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

Question 14

Which of the following is a polyatomic ion?

Accepted Answer

$\mathrm{NO_3^-}$

Question 15

Which of the following best describes an aqueous solution?

Accepted Answer

A solution in which water is the solvent.

Question 16

Which of the following compounds is insoluble in water?

Accepted Answer

Calcium carbonate ($\mathrm{CaCO_3}$)

Question 17

Which of the following is the correct net ionic equation for the reaction between $\mathrm{BaCl_2(aq)}$ and $\mathrm{Na_2SO_4(aq)}$?

Accepted Answer

$\mathrm{Ba^{2+}(aq) + SO_4^{2-}(aq) \rightarrow BaSO_4(s)}$

Question 18

Which of the following is the correct formula for the ammonium ion?

Accepted Answer

$\mathrm{NH_4^+}$

Question 19

Which of the following best describes a redox reaction?

Accepted Answer

A reaction in which electrons are transferred between species.

Question 20

Which of the following is the correct net ionic equation for the reaction between $\mathrm{Na_2CO_3(aq)}$ and $\mathrm{HCl(aq)}$?

Accepted Answer

$\mathrm{CO_3^{2-}(aq) + 2H^+(aq) \rightarrow CO_2(g) + H_2O(l)}$

Study Guide: Chemical Reactions, Solubility, and Ionic Compounds

Study Guide - Practice Questions