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T's peggy sue's birthday and she's about to blow out the candles on her cake. brother roger stops the party when he shouts: "look at that! chemical and physical changes taking places on your birthday cake! " 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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T's peggy sue's birthday and she's about to blow out the candles on her cake. brother roger stops th...
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