21. What is the molecular formula of the compound shown below? a. C H20
Η Η
b. CHAO
H-0-0-0-0-H
c. C н
н
HC-H
d. C5H100
0
| 1
1
1
H

Use the drop-down menus to label each of the following changes p for physical change and c for chemical change. the substance changes to a new substance. the original substance can be recovered. the color changes. gas is produced and given off. the substance changes size, shape, or volume.