Question

Which of these is a demonstration of a chemical change?    

A.ice melting into water    
B.

wood becomes charred and black from burning    
C. water evaporates from a sugar solution, leaving behind sugar crystals    
D. a balloon suddenly popping
Please explain the answer :)

Answer 1

The answer is B.wood becomes charred and black from burning

Step-by-step explanation:

Answer 2

The answer would be B. Wood becomes charred and black from burning. This is because A and C are both simply water changing state, therefore these are both physical changes. D is simply air escaping so there is no chemical change. In B, however, the wood is being burned in a combustion reaction which causes a chemical change.