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9 October, 11:16

Which of the following sentences represents a physical change? sugar dissolves in coffee iron rusts gasoline burns in an engine a candle burns

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  1. 9 October, 13:21
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    The sentence that represents a physical change is sugar dissolves in coffee.

    The reason why this is a physical, and not a chemical change is because the sugar completely changed its state - it used to be solid, but then it melted into the coffee and became liquid.

    The other options are all chemical changes.
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