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: 6


Elements are made of atoms, which can neither be created nor destroyed. All atoms of the same element will have the same properties and cannot change to become another element. Because atoms cannot be broken down or added upon to form new elements, all chemical reactions must have conserved mass and sampled substances must have consistent ratios of elements within them.

Work Step by Step

Since atoms cannot be created or destroyed, the mass of matter before and after a chemical reaction must be the same. Since atoms cannot change their elemental identity, the types and amount of elements present in a reaction or sampled compounds must always be consistent.
Update this answer!

You can help us out by revising, improving and updating this answer.

Update this answer

After you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.