Question 1

Which of the following best describes a Brønsted-Lowry acid?

Accepted Answer

A substance that donates an H$$^+$$ ion in solution.

Question 2

What is the correct name for HNO$$_2$$ when dissolved in water?

Accepted Answer

Nitrous acid

Question 3

Which of the following equations correctly shows the dissociation of potassium hydroxide in water?

Accepted Answer

$$ \mathrm{KOH(s) \xrightarrow{H_2O} K^+(aq) + OH^-(aq)} $$

Question 4

Which of the following is a strong acid?

Accepted Answer

HNO$$_3$$

Question 5

In the reaction $$ \mathrm{NH_3 + H_2O \rightleftharpoons NH_4^+ + OH^-} $$, which species acts as the Brønsted-Lowry base?

Accepted Answer

NH$$_3$$

Question 6

Which of the following is the conjugate base of H$$_2SO$_4$$?

Accepted Answer

HSO$$_4^-$$

Question 7

A solution of NaOH is described as a strong base. What does this mean?

Accepted Answer

It dissociates completely in water to produce OH$$^-$$ ions.

Question 8

Which of the following is the correct conjugate acid-base pair in the reaction $$ \mathrm{HF(aq) + H_2O(l) \rightleftharpoons F^-(aq) + H_3O^+(aq)} $$?

Accepted Answer

HF and F$$^-$$

Question 9

Which of the following best explains why HCl is considered a strong acid?

Accepted Answer

It dissociates completely in water to produce H$$_3O$^+$$ and Cl$$^-$$ ions.

Question 10

Which of the following is the correct name for Ca(OH)$$_2$$?

Accepted Answer

Calcium hydroxide

Question 11

A student mixes HCl and NaOH in a beaker. Which of the following best describes the reaction?

Accepted Answer

A strong acid reacts with a strong base to form water and a salt.

Question 12

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

Accepted Answer

$$ \mathrm{H_3O^+} $$

Question 13

Which of the following acids is correctly paired with its name?

Accepted Answer

H$$_2CO$_3$$ – Carbonic acid

Question 14

Which of the following statements about weak acids is true?

Accepted Answer

They only partially dissociate in water.

Question 15

In the reaction $$ \mathrm{HCl(g) + H_2O(l) \rightarrow H_3O^+(aq) + Cl^-(aq)} $$, what role does water play?

Accepted Answer

It acts as a Brønsted-Lowry base.

Question 16

Which of the following best describes the relationship between an acid and its conjugate base?

Accepted Answer

They differ by one H$$^+$$ ion.

Question 17

Which of the following is a characteristic property of bases?

Accepted Answer

They turn red litmus paper blue.

Question 18

Which of the following is the correct name for HIO$$_3$$?

Accepted Answer

Iodic acid

Question 19

Which of the following best describes the difference between a strong and a weak base?

Accepted Answer

A strong base dissociates completely in water, while a weak base only partially dissociates.

Acids and Bases: Bronsted-Lowry Theory and Properties

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