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Physical or Chemical Change?
For our homework we were asked to identify if the following were Physical or Chemical change and explain why.
1. Chocolate has a brown color.
2. Nail polish evaporates if left open.
3. An energy drink will supply one with stamina.
4. Insect can walk on the surface of the water.
( I hope you could help me find my answers ) :D
1 Answer
- Anonymous6 years ago
1. chemical. to do with which wavelengths the chemicals will absorb / reflect.
2. chemical because of entropy.
3. chemical energy from the sugar in the drink
4. chemical. due to h-bonding which causes surface tension i water