## Chemistry 12th Edition

We know that a. The given statement shows a physical change because the helium gas is not changed by leaking out of the balloon. b. The given statement shows a chemical change in the battery. c. The given statement shows a physical change as the orange juice can be recovered back by evaporation of the water. d. The given statement is a chemical change because photosynthesis changes water $CO_2$ into organic matter. e. The given statement shows a physical change as the salt can be obtained again by evaporation.