**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 (3)
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.
The answer is B.wood becomes charred and black from burning ;
The correct answer is B. Wood becomes charred and black from burning, as it represents a chemical change where the wood transforms into new substances. The other options represent physical changes where the chemical composition remains the same.
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