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Ch. 2 The Chemical Level of Organization
Martini - Fundamentals of Anatomy and Physiology 12th Edition
Martini, Nath, Bartholomew12th EditionFundamentals of Anatomy and PhysiologyISBN: 9780137854011Not the one you use?Change textbook
All textbooksMartini, Nath, Bartholomew 12th EditionCh. 2 The Chemical Level of OrganizationProblem 12
Chapter 2, Problem 12

A(n)__is a solute that dissociates to release hydrogen ions, and a(n)___is a solute that removes hydrogen ions from solution.
(a) base, acid
(b) salt, base
(c) acid, salt
(d) acid, base

Verified step by step guidance
1
Understand the definitions of the key terms: An acid is a solute that dissociates in solution to release hydrogen ions (H\_3O\^+ or H\^+), increasing the acidity of the solution.
A base is a solute that removes hydrogen ions from the solution, often by accepting H\^+ ions or releasing hydroxide ions (OH\^-) that combine with H\^+ ions.
Identify which term corresponds to releasing hydrogen ions: this is the acid.
Identify which term corresponds to removing hydrogen ions: this is the base.
Match these definitions to the options given to select the correct pair: acid for releasing H\^+ ions, and base for removing H\^+ ions.

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Key Concepts

Here are the essential concepts you must grasp in order to answer the question correctly.

Acid

An acid is a substance that dissociates in water to release hydrogen ions (H+). These ions increase the solution's acidity, lowering its pH. Common examples include hydrochloric acid (HCl) and sulfuric acid (H2SO4).
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Acids

Base

A base is a substance that removes hydrogen ions (H+) from a solution, often by releasing hydroxide ions (OH-) that combine with H+ to form water. Bases increase the pH of a solution, making it more alkaline. Examples include sodium hydroxide (NaOH).
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Bases

Dissociation in Aqueous Solutions

Dissociation refers to the process where compounds separate into ions when dissolved in water. Acids dissociate to release H+ ions, while bases dissociate to release OH- ions or remove H+ ions. Understanding this process is key to identifying acids and bases.
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Homogenous vs. Heterogenous Solutions
Related Practice
Textbook Question

The speed, or rate, of a chemical reaction is influenced by

(a) The presence of catalysts

(b) The temperature

(c) The concentration of the reactants

(d) a, b, and c are all correct

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Textbook Question

Special catalytic molecules called___speed up chemical reactions in the human body.

(a) enzymes

(b) cytozymes

(c) cofactors

(d) activators

(e) cytochromes

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Textbook Question

Which of the following chemical equations illustrates a typical decomposition reaction?

a. A + B → AB

b. AB + CD → AD + CB

c. 2A₂+ B₂ → 2A₂B

d. AB → A + B

Textbook Question

Complementary base pairing in DNA includes the pairs

(a) Adenine–uracil and cytosine–guanine

(b) Adenine–thymine and cytosine–guanine

(c) Adenine–guanine and cytosine–thymine

(d) Guanine–uracil and cytosine–thymine

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Textbook Question

A pH of 7.8 in the human body typifies a condition referred to as

(a) Acidosis

(b) Alkalosis

(c) Dehydration

(d) Homeostasis

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Textbook Question

Which of the following is not a function of a protein?

(a) Support

(b) Transport

(c) Metabolic regulation

(d) Storage of genetic information

(e) Movement

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