A student takes four samples of a white crystalline solid and places each in a well plate. On top of each sample, she carefully places 20 drops of clear mystery liquids A, B, C and D. Her results for each well are:

Liquid A: The solid dissolves quickly.
Liquid B: The solid appears unchanged.
Liquid C: A brownish colored liquid is produced.
Liquid D: Fizzing occurs and the well becomes warmer.

In which well does a PHYSICAL change occur?

A)
A

B)
B

C)
C

D)
D

Question

A student takes four samples of a white crystalline solid and places each in a well plate. On top of each sample, she carefully places 20 drops of clear mystery liquids A, B, C and D. Her results for each well are:

 Liquid A: The solid dissolves quickly.
 Liquid B: The solid appears unchanged.
 Liquid C: A brownish colored liquid is produced.
 Liquid D: Fizzing occurs and the well becomes warmer. 

 In which well does a PHYSICAL change occur? 


 








  
A)
  A   

 
  
B)
  B   

 
  
C)
  C   

 
  
D)
  D