Question 1

Which of the following compounds, when dissolved in water, will produce the highest number of ions per mole, thus resulting in the greatest electrical conductivity?

Accepted Answer

Ca(OH)_2

Question 2

Which of the following is a strong electrolyte?

Accepted Answer

$$HClO_4$$

Question 3

A solution of 1 mol of NaCl in 1 L of water will conduct electricity because:

Accepted Answer

NaCl is a strong electrolyte and completely dissociates into ions

Question 4

Which of the following is NOT a strong acid?

Accepted Answer

HF

Question 5

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

Accepted Answer

C_6H_{12}$$O_6$$

Question 6

Which of the following is the correct net ionic equation for the reaction between aqueous solutions of Pb($$NO_3)_2 $$and KI?

Accepted Answer

$$\mathrm{Pb$$^{2+}$$(aq) + 2I^-(aq) \rightarrow $$PbI_2$$(s)}$$

Question 7

Which of the following is a correct statement about weak electrolytes?

Accepted Answer

They partially dissociate in water and conduct a weak current

Question 8

Which of the following is a strong base?

Accepted Answer

Ca(OH)_2

Question 9

Which of the following ions is a spectator ion in the reaction: $$\mathrm{$$AgNO_3$$(aq) + KCl(aq) \rightarrow AgCl(s) + $$KNO_3$$(aq)}$$?

Accepted Answer

K^+

Question 10

What is the oxidation state of chromium in $$\mathrm{Cr_2O_7$$^{2-}$$}$$?

Accepted Answer

+6

Question 11

Which of the following compounds is insoluble in water, except when paired with $$NH_4^+ or $$alkali metal cations?

Accepted Answer

$$BaCO_3$$

Question 12

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

Accepted Answer

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

Question 13

Which of the following is the correct oxidation state for oxygen in hydrogen peroxide ($$\mathrm{H_2O_2}$$)?

Accepted Answer

-1

Question 14

Which of the following is a correct molecular equation for the precipitation reaction between aqueous solutions of Ba($$NO_3)_2 $$and K_2SO_4?

Accepted Answer

$$\mathrm{Ba(NO_3$)_2(aq) + K_2SO_4(aq) \rightarrow $$BaSO_4$$(s) + 2KNO_3(aq)}$$

Question 15

Which of the following is the correct net ionic equation for the reaction between $$AgNO_3(aq) $$and NaCl(aq)?

Accepted Answer

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

Question 16

Which of the following is the correct oxidation state of hydrogen in NaH?

Accepted Answer

-1

Question 17

Which of the following is a weak acid?

Accepted Answer

CH_3COOH

Question 18

Which of the following is the correct net ionic equation for the neutralization of acetic acid ($$\mathrm{CH_3COOH}) $$with NaOH(aq)?

Accepted Answer

$$\mathrm{CH_3COOH(aq) + OH^-(aq) \rightarrow CH_3COO^-(aq) + H_2O(l)}$$

Question 19

Which of the following statements is TRUE regarding the solubility of ionic compounds?

Accepted Answer

All compounds containing $$NO_3^- $$are soluble with no exceptions

Electrolytes, Nonelectrolytes, and Strong/Weak Acids and Bases

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