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Chemistry & Chemical Reactivity

9th Edition
John C. Kotz + 3 others
Publisher: Cengage Learning
ISBN: 9781133949640

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Section
BuyFindarrow_forward

Chemistry & Chemical Reactivity

9th Edition
John C. Kotz + 3 others
Publisher: Cengage Learning
ISBN: 9781133949640
Chapter 1.5, Problem 2RC
Textbook Problem
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Which of the following is NOT a compound?

  1. (a) salt
  2. (b) water
  3. (c) potassium
  4. (d) sugar
  5. (e) alcohol

Interpretation Introduction

Interpretation:  The non-compound among the given following to be identified.

Concept introduction:

Elements: Substances that can be composed of only one type of atom are classified as elements.

Compounds: A pure substance which is composed of two or more different atoms or elements held together by chemical bonds, is referred to as a chemical compound.

Explanation of Solution

Reason for correct option:

  1. c) In potassium, the only atoms present are K and has no other element or atoms get mixed. Hence, the potassium is known as element but not compound.

    Therefore, the water is an element and not a compound.

Hence the correct option is option (c).

Reason for incorrect options:

  • Option a) – Salt.

The salt is a compound in which the two or more ions held together by the electrostatic force of attraction named as ionic bonding. Hence, the salt is a compound.

  • Option b) – Water – H2O

The formula of water

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Chapter 1 Solutions

Chemistry & Chemical Reactivity
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