Chemistry: Molecular Approach (4th Edition)

Published by Pearson
ISBN 10: 0134112830
ISBN 13: 978-0-13411-283-1

Chapter 1 - Exercises - Page 42: 145



Work Step by Step

The number of cubes can be calculated by dividing the volume of the bigger cube by the volume of the smaller cube. \[\begin{align} & \text{Number of smaller cubes =}\frac{\text{Volume of 7-cm cube}}{\text{Volume of 1-cm cube}} \\ & =\frac{{{\left( 7\text{ cm} \right)}^{3}}}{{{\left( \text{1 cm} \right)}^{3}}} \\ & =343 \end{align}\] The number of 1-cm cubes in a 7-cm cube is \[\underline{343}\].
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