Question 1

Which of the following best describes the products when an acid reacts with a hydroxide (OH⁻) base in aqueous solution?

Accepted Answer

A salt and water are formed.

Question 2

What is the balanced chemical equation, including phases, for the reaction between hydrobromic acid (HBr) and lithium oxide (Li₂O)?

Accepted Answer

$$2\ \mathrm{HBr} (aq) + \mathrm{Li}_2\mathrm{O} (s) \rightarrow 2\ \mathrm{LiBr} (aq) + \mathrm{H}_2\mathrm{O} (l)$$

Question 3

Which of the following is a correct balanced equation for the reaction of hydrochloric acid (HCl) with zinc metal (Zn)?

Accepted Answer

$$2\ \mathrm{HCl} (aq) + \mathrm{Zn} (s) \rightarrow \mathrm{ZnCl}_2 (aq) + \mathrm{H}_2 (g)$$

Question 4

When an acid reacts with a metal oxide, what are the typical products?

Accepted Answer

A salt and water

Question 5

Which of the following best describes a neutral amine in acid-base reactions?

Accepted Answer

A compound containing N with H or C, acting as a weak base

Question 6

Given the reaction: $$\mathrm{HF} (aq) + \mathrm{KOH} (aq) \rightarrow$$ ? What are the products?

Accepted Answer

$$\mathrm{H}_2\mathrm{O} (l) + \mathrm{KF} (aq)$$

Question 7

Which of the following is the correct balanced equation for the reaction of hydrobromic acid (HBr) with hydrazine ($$\mathrm{N}_2\mathrm{H}_4$$)?

Accepted Answer

$$2\ \mathrm{HBr} (aq) + \mathrm{N}_2\mathrm{H}_4 (aq) \rightarrow \mathrm{N}_2\mathrm{H}_6\mathrm{Br}_2 (aq)$$

Question 8

A student mixes nitric acid ($$\mathrm{HNO}_3) $$with sodium hydroxide ($$\mathrm{NaOH}). $$Which of the following best represents the balanced chemical equation for this reaction?

Accepted Answer

$$\mathrm{HNO}_3 (aq) + \mathrm{NaOH} (aq) \rightarrow \mathrm{NaNO}_3 (aq) + \mathrm{H}_2\mathrm{O} (l)$$

Question 9

Which of the following statements about acid-base reactions is correct?

Accepted Answer

Acids react with metals to produce hydrogen gas and a salt.

Question 10

A patient accidentally ingests a small amount of sodium hydroxide (NaOH). Which of the following acids could be administered to neutralize the base, and what would be the main products?

Accepted Answer

Hydrochloric acid (HCl); products are NaCl and H$$_2O$$

Question 11

Which of the following is a correct net ionic equation for the reaction between hydrochloric acid and sodium hydroxide?

Accepted Answer

$$\mathrm{H}^+ (aq) + \mathrm{OH}^- (aq) \rightarrow \mathrm{H}_2\mathrm{O} (l)$$

Question 12

Which of the following best explains why neutral amines are considered weak bases?

Accepted Answer

They only partially accept protons from acids in aqueous solution.

Question 13

A laboratory technician adds sulfuric acid ($$\mathrm{H}_2\mathrm{SO}_4) to $$iron(III) oxide ($$\mathrm{Fe}_2\mathrm{O}_3). $$What are the products of this reaction?

Accepted Answer

$$\mathrm{Fe}_2\mathrm{(SO}_4)_3 (aq) + 3\ \mathrm{H}_2\mathrm{O} (l)$$

Question 14

Which of the following is a distinguishing feature of acid-base reactions involving neutral amines?

Accepted Answer

They produce an ammonium salt as a product.

Question 15

A student is asked to write the balanced equation for the reaction of acetic acid ($$\mathrm{CH}_3\mathrm{COOH}) $$with sodium hydroxide ($$\mathrm{NaOH}). $$Which is correct?

Accepted Answer

$$\mathrm{CH}_3\mathrm{COOH} (aq) + \mathrm{NaOH} (aq) \rightarrow \mathrm{CH}_3\mathrm{COONa} (aq) + \mathrm{H}_2\mathrm{O} (l)$$

Question 16

Which of the following is a real-life application of acid-base reactions involving metal oxides?

Accepted Answer

Neutralizing acidic soil with calcium oxide (lime) in agriculture

Question 17

Which of the following best describes the role of water in acid-base neutralization reactions?

Accepted Answer

Water is formed as a product when H$$^+$$ from the acid combines with OH$$^-$$ from the base.

Acid-Base Reactions in GOB Chemistry: Types, Equations, and Practice

Guida di studio - Domande di pratica

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