How would you respond to roger?
a. roger is incorrect. the melting wax is a physical change but there is no chemical change taking place.
b. roger is correct. lighting the match is a chemical change and burning the candles is a physical change.
c. roger is correct. the melting wax is a physical change and the burning candle wick is a chemical change.
d. roger is incorrect. only a chemical change is taking place as evidenced by the light and heat of the burning candles?
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