Chemistry
Answer
| Physical Change | Chemical Change |
|---|---|
| In a physical change, no new substance is formed and the chemical composition of the substance remains the same. These are changes only in physical properties and state. | In a chemical change a new substance with entirely different chemical composition and properties is formed. |
| The change can be reversible or irreversible. | The change is permanent. |
| The change can be reversed by simple physical methods. | The change cannot be reversed by simple physical methods. |
| Heat or light energy may or may not be released or absorbed. | Heat or light energy are given out or absorbed. |
Related Questions
State the characteristics of physical changes.
State the characteristics of chemical changes.
Why is burning of a candle an example of both a physical and a chemical change ?
Name the terms marked as A, B, C, D and E in the following and state the type of changes.
In which of the above changes does a gain in mass take place?