Chemistry: A Molecular Approach (3rd Edition)

Published by Prentice Hall
ISBN 10: 0321809246
ISBN 13: 978-0-32180-924-7

Chapter 2 - Sections 2.1-2.9 - Exercises - Review Questions: 5

Answer

The Law of Multiple Proportions: When elements A and B form two different compounds, the masses of element B that combine with 1 g of element A can be expressed as a ratio of small whole numbers. Two compounds made of the same elements will have internal ratios of their constituent elements; This law tells us that there is a relationship between the ratios of these two compounds that can also be expressed as a ratio. The law of definite proportions applies to two or more samples of the same compound and states that the ratio of one element to the other will always be the same.

Work Step by Step

The law of multiple proportions applies to the relationship between the proportional element components of two different compounds made of the same elements, whereas the law of definite proportions applies to the elements within a single compound.
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