Answers 25-26 KCS18 Chemistry ICArrhenius, Bronsted-Lowry, and Lewis Acids and Bases

Arrhenius, Bronsted-Lowry, and Lewis Acids and Bases Answers

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Consider the reaction below.H2PO4– + H2O H3O+ + HPO42–Which of the following is a base–conjugate acid pair?

H2O and H3O+

H2O and H2PO4–

H2PO4– and HPO42–

H2PO4– and H3O+

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Which is a characteristic of a Lewis base?

It behaves as the electron donor.

It behaves as the electron acceptor.

It donates a hydrogen ion to other compounds.

It increases the concentration of hydrogen ions.

Which of the following would most likely act as a Bronsted-Lowry acid?

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HCN

CCl4

Mg(OH)+

Which statement describes the Arrhenius interpretation of acids and bases?

It has a wider range of applications than the Bronsted-Lowry interpretation.

It has a wider range of applications than the Lewis and Bronsted-Lowry interpretations.

It is used in situations that involve bases that do not produce hydroxide ions.

It is limited to situations that involve aqueous solutions or specific compounds.

Which term describes a substance that increases the concentration of hydroxide ions in solution?

Lewis definition of an acid

Arrhenius definition of a base

Bronsted-Lowry definition of a base

Bronsted-Lowry definition of an acid

A chemist lectures about the following definition for acids and bases.The acid-base behavior is analyzed in terms of how electrons are transferred between compounds rather than in terms of how hydrogen ions are transferred.What is the chemist defining?

the Arrhenius concept of acids and bases

the classical concept of acids and bases

the Lewis concept of acids and bases

the Bronsted-Lowry concept of acids and bases

Consider the reaction below.HF + H2O H3O + FWhich is an acid-conjugate base pair?

HF and H3O+

HF and F

H2O and HF

H2O and F

What is the Bronsted-Lowry definition of a base?

a compound that donates protons

a compound that accepts protons

a substance that increases hydroxide ion concentration

a substance that increases hydronium ion concentration

What is the definition of a Lewis acid?

a substance that accepts electrons to form a covalent bond

a substance that donates electrons to form a covalent bond

a substance that accepts a proton

a substance that donates a proton

What is the Bronsted-Lowry definition of an acid?

a compound that donates protons

a compound that accepts protons

a substance that increases hydroxide ion concentration

a substance that increases hydronium ion concentration

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Arrhenius, Bronsted-Lowry, and Lewis Acids and Bases Answers

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