Question

classify the changes involved in the following processes as physical or chemical change 1 photosynthesis 2 burning of wax 3 Dissolving sugar in water 4 burning of coal​

Answer 1

Answer:

• photosynthesis is a chemical reaction
• burning of wax is both physical and chemical process
• dissolving sugar in water is a physical process
• burn of coal is a chemical process

Answer 2

1.photosynthesis is chemical change .

2.burning of wax is both chemical and physical change.

3.dissolving sugar in water is physical change.

4.burning of coal is chemical change.