mark each change below p if it is physical and c if it is chemical.
__c__14. milk souring
__15. gasoline burning
__16. ice melting
__. 17. lighting a match
__18. water evaporating
__19. chopping wood
__20. burning wood
__21. breath fogging a mirror
__22. cooking an egg
__23. bleaching a stain

Question

Accepted Answer

### 15. gasoline burning
# Brief Explanations:
Gasoline burning involves a chemical reaction (combustion) producing new substances (like CO₂, H₂O), so it's a chemical change (C).
# Answer:
C

### 16. ice melting
# Brief Explanations:
Ice melting is a phase change (solid to liquid) with no new substance formed, so it's a physical change (P).
# Answer:
P

### 17. lighting a match
# Brief Explanations:
Lighting a match involves combustion (chemical reaction) creating new substances, so it's a chemical change (C).
# Answer:
C

### 18. water evaporating
# Brief Explanations:
Water evaporating is a phase change (liquid to gas) with no new substance, so it's a physical change (P).
# Answer:
P

### 19. chopping wood
# Brief Explanations:
Chopping wood only changes the wood's shape/size, no new substance, so it's a physical change (P).
# Answer:
P

### 20. burning wood
# Brief Explanations:
Burning wood is combustion, producing new substances (ash, CO₂), so it's a chemical change (C).
# Answer:
C

### 21. breath fogging a mirror
# Brief Explanations:
Breath (water vapor) condensing on the mirror is a phase change (gas to liquid), no new substance, so physical change (P).
# Answer:
P

### 22. cooking an egg
# Brief Explanations:
Cooking an egg causes protein denaturation (new substances/structure), so it's a chemical change (C).
# Answer:
C

### 23. bleaching a stain
# Brief Explanations:
Bleaching involves a chemical reaction to break down the stain, creating new substances, so chemical change (C).
# Answer:
C

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QUESTION IMAGE

Question

Explanation:

15. gasoline burning

Answer:

16. ice melting