chemical vs. physical changes
chemical changes
physical changes

Question

Accepted Answer

# Brief Explanations:
Chemical changes result in new substances with different chemical properties, often involving reactions like combustion or rusting. Physical changes only affect the physical state or appearance of a substance, such as melting, freezing, or cutting, without altering its chemical composition.
# Answer:
| Chemical Changes | Physical Changes |
| --- | --- |
| Formation of new substances, e.g., wood burning to ash and gases. | Change in state or appearance, e.g., ice melting to water. |
| Involve chemical reactions and bond - breaking/forming. | No new substances formed, e.g., paper being torn. |
| Usually irreversible by simple physical means. | Often reversible, e.g., water freezing back to ice. |

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Explanation:

Answer:

Chemical Changes	Physical Changes
Involve chemical reactions and bond - breaking/forming.	No new substances formed, e.g., paper being torn.
Usually irreversible by simple physical means.	Often reversible, e.g., water freezing back to ice.