1. Dissolving of a solid in liquid is a physical change. True or false

1.	1. Dissolving of a solid in liquid is a physical change. True or false ?2. During a physical change energy is either given out or absorbed by the system. True or false ?3. In a chemical change, rearrangement of molecules and atoms involves some energy changes. True or false ?
Answer» 1. True 2. True 3. True

1. Dissolving of a solid in liquid is a physical change. True or false ?2. During a physical change energy is either given out or absorbed by the system. True or false ?3. In a chemical change, rearrangement of molecules and atoms involves some energy changes. True or false ?

Answer»

1. True

2. True

3. True