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Introductory Chemistry: A Foundati...

9th Edition
Steven S. Zumdahl + 1 other
ISBN: 9781337399425

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Chapter
Section
BuyFindarrow_forward

Introductory Chemistry: A Foundati...

9th Edition
Steven S. Zumdahl + 1 other
ISBN: 9781337399425
Textbook Problem

What are the three most abundant elements (by mass) in the human body?

Interpretation Introduction

Interpretation:

The three most abundant elements (by mass) in human body should be identified.

Concept Introduction:

Human body is composed of water, connective tissues, protein, fats or lipids, carbohydrates like glucose, glycogen, hydroxylapatite (in bones) and DNA. Water is the most abundant molecule in human body, next the organic compounds.

Explanation

Most abundant compounds in human body are water and organic compounds. So Oxygen from water, Carbon from organic compounds and Hydrogen from both water and organic compounds contribute to the composition of human body. Average percentage by mass of those elements in human body is Oxygen −

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