Question 1

Which of the following is the correct net ionic equation for the reaction between potassium sulfite ($K_2SO_3$) and hydrochloric acid ($HCl$)?

Accepted Answer

$SO_3^{2-}(aq) + 2H^+(aq) \rightarrow H_2O(l) + SO_2(g)$

Question 2

Which of the following acids is classified as a strong acid?

Accepted Answer

Sulfuric acid ($H_2SO_4$)

Question 3

What is the net ionic equation for the reaction between nitric acid ($HNO_3$) and barium hydroxide ($Ba(OH)_2$)?

Accepted Answer

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

Question 4

Which of the following is a weak base?

Accepted Answer

Ammonia ($NH_3$)

Question 5

A student mixes solutions of sodium sulfate ($Na_2SO_4$) and magnesium chloride ($MgCl_2$). What is the net ionic equation for this reaction?

Accepted Answer

No net ionic equation; no reaction occurs.

Question 6

Which of the following best describes a neutralization reaction?

Accepted Answer

A reaction in which an acid reacts with a base to form water and a salt.

Question 7

Which of the following is the correct molecular equation for the reaction between magnesium hydroxide ($Mg(OH)_2$) and hydrochloric acid ($HCl$)?

Accepted Answer

$Mg(OH)_2(s) + 2HCl(aq) \rightarrow MgCl_2(aq) + 2H_2O(l)$

Question 8

Which of the following is the correct net ionic equation for the precipitation reaction between iron(III) chloride ($FeCl_3$) and silver acetate ($AgC_2H_3O_2$)?

Accepted Answer

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

Question 9

Which of the following is the correct net ionic equation for the reaction between lead(II) nitrate ($Pb(NO_3)_2$) and zinc sulfate ($ZnSO_4$)?

Accepted Answer

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

Question 10

Which of the following is the correct net ionic equation for the reaction between sulfurous acid ($H_2SO_3$) and sodium hydroxide ($NaOH$)?

Accepted Answer

$2H^+(aq) + 2OH^-(aq) \rightarrow 2H_2O(l)$

Question 11

Which of the following is the correct net ionic equation for the reaction between barium hydroxide ($Ba(OH)_2$) and sulfuric acid ($H_2SO_4$)?

Accepted Answer

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

Question 12

Which of the following is a correct example of a gas-forming reaction?

Accepted Answer

$CO_2(g) + H_2O(l)$ is produced when $Na_2SO_4(aq)$ reacts with $H_2CO_3(aq)$

Question 13

Which of the following is the correct ionic equation for the dissociation of sodium hydroxide ($NaOH$) in water?

Accepted Answer

$NaOH(s) \rightarrow Na^+(aq) + OH^-(aq)$

Question 14

Which of the following is the correct balanced equation for the combustion of propane ($C_3H_8$)?

Accepted Answer

$C_3H_8(g) + 5O_2(g) \rightarrow 3CO_2(g) + 4H_2O(g)$

Question 15

How many moles of $CO_2$ are produced from 0.75 mol of propane ($C_3H_8$) in its complete combustion?

Accepted Answer

2.25 mol

Question 16

If you want to produce 12 mol of $H_2O$ from the combustion of propane ($C_3H_8$), how many moles of propane are required?

Accepted Answer

3.0 mol

Question 17

Which of the following is the correct mole-to-mole conversion factor for oxygen in the combustion of propane ($C_3H_8$)?

Accepted Answer

$\frac{5 	ext{ mol } O_2}{1 	ext{ mol } C_3H_8}$

Ionic Equations, Acid-Base Reactions, and Stoichiometry in General Chemistry

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