 
			 
			MCQOPTIONS
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				| 1. | Inflating a balloon is a/an _____ change. | 
| A. | Irreversible | 
| B. | Chemical | 
| C. | The crystallization of sugar is a chemical change. | 
| D. | Periodic | 
| E. | None of these | 
| Answer» D. Periodic | |