Q: Which of the following is the correct balanced chemical equation for the neutralization of phosphoric acid (H$$_3PO$_4) $$with potassium hydroxide (KOH)?

$$\text{H}_3\text{PO}_4(aq) + 3\text{KOH}(aq) \rightarrow 3\text{H}_2\text{O}(l) + \text{K}_3\text{PO}_4(aq)$$

Q: Which of the following is the complete ionic equation for the reaction between NaOH(aq) and CuSO$$_4(aq$$)?

$$2\text{Na}^+(aq) + 2\text{OH}^-(aq) + \text{Cu}^{2+}(aq) + \text{SO}_4$$^{2-}$$(aq) \rightarrow \text{Cu}(OH)_2(s) + 2\text{Na}^+(aq) + \text{SO}_4$$^{2-}$$(aq)$$

Q: Which of the following is the net ionic equation for the reaction between NaOH(aq) and CuSO$$_4(aq$$)?

$$2\text{OH}^-(aq) + \text{Cu}^{2+}(aq) \rightarrow \text{Cu}(OH)_2(s)$$

Q: Which of the following is the correct molar mass for C$$_6H$_6$$?

$$6 \times 12.01 + 6 \times 1.008 = 78.11 g/$$mol

Question 1

Which of the following ions is NOT a strong electrolyte in aqueous solution?

Accepted Answer

None of these

Question 2

Which of the following compounds is a strong base?

Accepted Answer

Ca(OH)$$_2$$

Question 3

Consider the reaction: CH$$_3$$COOH(aq) $$\rightarrow CH$_3$$COO$$^- (aq) + H$^+ (aq). $$What does this reaction represent?

Accepted Answer

The dissociation of a weak acid

Question 4

Na$$_3PO$_4 is ________ $$and AgCl is ________ in water.

Accepted Answer

Soluble, insoluble

Question 5

An electrolyte is a substance that:

Accepted Answer

Conducts electricity when dissolved in water

Question 6

How many grams of nickel are present in 5.71 moles of Ni? (Molar mass of Ni = 58.69 g/mol)

Accepted Answer

$$5.71 	imes 58.69 = 335 g$$

Question 7

A compound with a molar mass of 78.1 g/mol is made only of carbon and hydrogen. When 2.311 g of CO$$_2$$ and 0.4729 g of H$$_2O $$are produced from combustion of 1.00 g of the compound, what is its molecular formula?

Accepted Answer

C$$_6H$_6$$

Question 8

How many grams of NO$$_2$$ are produced when 4.30 g of HNO$$_3$$ are used in the reaction: $$3	ext{NO}_3(aq) + 2	ext{HNO}_3(aq) ightarrow 2	ext{HNO}_2(aq) + 	ext{NO}_2(aq)$$?

Accepted Answer

4.7 g

Question 9

Which of the following best describes the solubility of AgCl in water?

Accepted Answer

AgCl is insoluble in water

Question 10

Which of the following is the correct balanced chemical equation for the neutralization of phosphoric acid (H$$_3PO$_4) $$with potassium hydroxide (KOH)?

Accepted Answer

$$	ext{H}_3	ext{PO}_4(aq) + 3	ext{KOH}(aq) ightarrow 3	ext{H}_2	ext{O}(l) + 	ext{K}_3	ext{PO}_4(aq)$$

Question 11

Which of the following is the complete ionic equation for the reaction between NaOH(aq) and CuSO$$_4(aq$$)?

Accepted Answer

$$2	ext{Na}^+(aq) + 2	ext{OH}^-(aq) + 	ext{Cu}^{2+}(aq) + 	ext{SO}_4$$^{2-}$$(aq) ightarrow 	ext{Cu}(OH)_2(s) + 2	ext{Na}^+(aq) + 	ext{SO}_4$$^{2-}$$(aq)$$

Question 12

A student mixes aqueous solutions of Na$$_3PO$_4$$ and AgNO$$_3. $$What precipitate forms?

Accepted Answer

Ag$$_3PO$_4$$

Question 13

Which of the following statements is TRUE about weak acids?

Accepted Answer

They partially dissociate in water

Question 14

Which of the following is a characteristic of a strong electrolyte?

Accepted Answer

It completely dissociates in water

Question 15

A solution contains 0.052 mol H and 0.052 mol C. What is the empirical formula?

Accepted Answer

CH

Question 16

Which of the following is the net ionic equation for the reaction between NaOH(aq) and CuSO$$_4(aq$$)?

Accepted Answer

$$2	ext{OH}^-(aq) + 	ext{Cu}^{2+}(aq) ightarrow 	ext{Cu}(OH)_2(s)$$

Question 17

Which of the following is a product of the reaction between phosphoric acid and potassium hydroxide?

Accepted Answer

K$$_3PO$_4$$

Question 18

Which of the following is a correct statement about the dissociation of acetic acid (CH$$_3$$COOH) in water?

Accepted Answer

It dissociates partially

Question 19

Which of the following is the correct molar mass for C$$_6H$_6$$?

Accepted Answer

$$6 	imes 12.01 + 6 	imes 1.008 = 78.11 g/$$mol

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