24 Questions
What is the characteristic of acids according to Arrhenius definition?
Increase the concentration of H3O+ ions in solution
Which of the following is an example of a polyprotic acid?
Sulfuric acid (H2SO4)
What is the term for substances that can act as both acids and bases?
Amphoteric
According to Bronsted-Lowry definition, what is an acid?
A substance that donates protons
What is a conjugate acid-base pair?
Two species that transform into each other by gain or loss of a proton
Which of the following is an example of a base?
Sodium hydroxide (NaOH)
What is the characteristic of bases according to Arrhenius definition?
Increase the concentration of OH− ions in solution
What is the term for a subset of amphoteric substances that can donate or accept protons?
Amphiprotic
What is the common characteristic of hydrochloric acid (HCl), sulfuric acid (H2SO4), and acetic (ethanoic) acid (CH3COOH)?
They are all acids
Which of the following is a correct statement about the Bronsted-Lowry definition of acids and bases?
It defines acids as proton donors and bases as proton acceptors
What is the result of the reaction between sulfuric acid (H2SO4) and hydroxide ions (OH−)?
The formation of water (H2O) and hydrogen sulfate ions (HSO4−)
What is the term for a substance that can donate or accept protons (H+)?
Amphiprotic
Which of the following substances can act as both an acid and a base, depending on the reaction?
Water (H2O)
What is the role of an acid in a reaction, according to the Bronsted-Lowry definition?
To donate a proton (H+)
Which of the following is an example of a conjugate acid-base pair?
Sulfuric acid (H2SO4) and hydrogen sulfate ions (HSO4−)
What is the result of the reaction between sulfuric acid (H2SO4) and two hydroxide ions (OH−)?
The formation of water (H2O) and sulfate ions (SO4^2-)
Which of the following is NOT a characteristic of acids and bases?
They can only be classified as either acids or bases
What is the main difference between the Arrhenius and Bronsted-Lowry definitions of acids and bases?
The type of ions they increase in solution
What is the role of water in acid-base reactions?
It can act as both an acid and a base
What happens when a polyprotic acid donates all its protons?
It becomes a salt
What is the relationship between a conjugate acid-base pair?
They are two species that transform into each other by gain or loss of a proton
Which of the following is an example of an amphiprotic substance?
Water (H2O)
What is the result of the reaction between sulfuric acid (H2SO4) and one hydroxide ion (OH-)?
HSO4- and H2O
Why are acids and bases important in chemistry?
They play a crucial role in many chemical reactions
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