Gr 11 Physical Sciences: Ch 11.2 Acid-base reactions
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Questions and Answers

What is a common characteristic of acids?

  • Soapy feel
  • Sweet taste
  • Sour taste (correct)
  • Bitter taste

Which of the following is an example of a base?

  • Hydrochloric acid (HCl)
  • Sulfuric acid (H2SO4)
  • Acetic acid (CH3COOH)
  • Sodium hydroxide (NaOH) (correct)

What is the definition of an acid according to the Arrhenius definition?

  • A substance that donates protons
  • A substance that increases the concentration of OH- ions in solution
  • A substance that accepts protons
  • A substance that increases the concentration of H3O+ ions in solution (correct)

What is the term for a substance that can act as both an acid and a base?

<p>Amphoteric (D)</p> Signup and view all the answers

Which of the following is an example of a polyprotic acid?

<p>Sulfuric acid (H2SO4) (C)</p> Signup and view all the answers

What is the term for a substance that can donate or accept protons?

<p>Amphiprotic (D)</p> Signup and view all the answers

What is the result of the reaction between an acid and a base?

<p>Formation of a salt and water (A)</p> Signup and view all the answers

What is a conjugate acid-base pair?

<p>Two substances that transform into each other by gain or loss of a proton (C)</p> Signup and view all the answers

Which of the following is an example of an amphiprotic substance?

<p>Water (H2O) (D)</p> Signup and view all the answers

What is the product of the reaction between hydrochloric acid and sodium hydroxide?

<p>Sodium chloride and water (C)</p> Signup and view all the answers

What is the general equation for the reaction between an acid and a metal hydroxide?

<p>nH+ (aq) + M(OH)_n (aq) → nH_2O (l) + M^n+ (aq) (D)</p> Signup and view all the answers

What is the product of the reaction between an acid and a metal oxide?

<p>A salt and water (D)</p> Signup and view all the answers

What is the product of the reaction between an acid and a metal carbonate?

<p>A salt, carbon dioxide, and water (A)</p> Signup and view all the answers

What is the reaction between hydrochloric acid and ammonia?

<p>Formation of ammonium chloride (C)</p> Signup and view all the answers

What is formed when hydrogen bromide reacts with potassium hydroxide?

<p>H2O (l) + KBr (aq) (B)</p> Signup and view all the answers

What is the general equation for the reaction between an acid and a metal carbonate?

<p>2H+ (aq) + MCO3 (aq) → H2O (l) + CO2 (g) + M2+ (aq) (D)</p> Signup and view all the answers

What is formed when an acid reacts with a metal oxide?

<p>A salt and water (D)</p> Signup and view all the answers

What is the product of the reaction between hydrochloric acid and sodium hydroxide?

<p>H2O (l) + NaCl (aq) (D)</p> Signup and view all the answers

What is formed when an acid reacts with a metal hydroxide?

<p>A salt and water (C)</p> Signup and view all the answers

What is the product of the reaction between hydrochloric acid and ammonia?

<p>NH4Cl (aq) + H2O (l) (A)</p> Signup and view all the answers

What is the common characteristic of hydrogen chloride, sulfuric acid, and acetic acid?

<p>They are all acids (C)</p> Signup and view all the answers

Which of the following definitions is associated with the Bronsted-Lowry definition?

<p>Acids are proton donors (B)</p> Signup and view all the answers

What is the result of the reaction between sulfuric acid and hydroxide ions?

<p>The formation of a sulfate ion and water (D)</p> Signup and view all the answers

What is the term for the ability of a substance to act as both an acid and a base?

<p>Amphiprotic (C)</p> Signup and view all the answers

Which of the following substances is an example of a polyprotic acid?

<p>Sulfuric acid (A)</p> Signup and view all the answers

What is the term for a substance that can donate or accept protons?

<p>Amphoteric (A)</p> Signup and view all the answers

What is the result of the reaction between sulfuric acid and hydroxide ions in two successive steps?

<p>The formation of a hydrogen sulfate ion and water, followed by the formation of a sulfate ion and water (B)</p> Signup and view all the answers

Which of the following is an example of a conjugate acid-base pair?

<p>Hydrogen sulfate ion and sulfate ion (B)</p> Signup and view all the answers

Which of the following substances can act as both a proton donor and a proton acceptor?

<p>Water (H2O) (D)</p> Signup and view all the answers

What is the correct sequence of events when sulfuric acid (H2SO4) reacts with hydroxide ions?

<p>H2SO4 donates one proton, then donates another proton (D)</p> Signup and view all the answers

According to the Bronsted-Lowry definition, what is the role of an acid in a reaction?

<p>To donate a proton (C)</p> Signup and view all the answers

What is the term for the pair of species that can transform into each other by gain or loss of a proton?

<p>Conjugate acid-base pair (C)</p> Signup and view all the answers

Which of the following is NOT an example of an acid?

<p>Sodium hydroxide (NaOH) (D)</p> Signup and view all the answers

What is the characteristic of a polyprotic acid?

<p>It can donate more than one proton (B)</p> Signup and view all the answers

What is the term for the ability of a substance to act as both an acid and a base?

<p>Amphoteric (B)</p> Signup and view all the answers

Which of the following is an example of a substance that can act as both an acid and a base, depending on the reaction?

<p>Water (H2O) (A)</p> Signup and view all the answers

What is the general equation for the reaction between an acid and a metal oxide?

<p>2yH+(aq) + MxAy(aq) → yH2O(l) + xMn+(aq) (D)</p> Signup and view all the answers

When hydrochloric acid reacts with ammonia, what is the conjugate acid-base pair?

<p>NH4+ and Cl- (D)</p> Signup and view all the answers

What is the number of moles of water formed in the reaction between an acid and a metal carbonate?

<p>2 moles (C)</p> Signup and view all the answers

When hydrogen bromide reacts with potassium hydroxide, what is the type of reaction that occurs?

<p>Neutralisation reaction (B)</p> Signup and view all the answers

What is the general equation for the reaction between an acid and a metal hydroxide?

<p>nH+(aq) + M(OH)n(aq) → nH2O(l) + Mn+(aq) (B)</p> Signup and view all the answers

When an acid reacts with a metal oxide, what is the type of compound formed?

<p>Salt and water (D)</p> Signup and view all the answers

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