Question

5 A molecule is measured and the width is 3 x 10-6 cm. How long will a string of 225 similar molecules be? Give your answer in scientific notation.​

Answer 1

6.75 * 10-8

Explanation:

3 * 10-6 is 3,000,000.

multiply by 225.

675,000,000

notate

6.75 * 10-8