Question 29

Question

Classify each change listed below as either a chemical or physical change in matter.

Column A
1.
Liquid water boiling and becoming steam:
Liquid water boiling and becoming steam
2.
Silver metal tarnishing and becoming silver sulfide.:
Silver metal tarnishing and becoming silver sulfide.
3.
Paper burning:
Paper burning
4.
Bending copper wire:
Bending copper wire
5.
Dissloving salt in water:
Dissloving salt in water
6.
Iron rusting to become iron oxide.:
Iron rusting to become iron oxide.
Column B
a.Physical Change
b.Chemical Change

Answer 1

Here is the classification of each change listed in Column A:

1. Liquid water boiling and becoming steam: a. Physical Change
2. Silver metal tarnishing and becoming silver sulfide: b. Chemical Change
3. Paper burning: b. Chemical Change
4. Bending copper wire: a. Physical Change
5. Dissolving salt in water: a. Physical Change
6. Iron rusting to become iron oxide: b. Chemical Change