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16 August, 18:26

Which is a sign of a chemical change? Question 3 options: Vinegar is mixed with baking soda resulting in carbon dioxide bubbles. Paint on a freshly painted wall dries and is no longer sticky. Ice cream melts when left at room temperature. Calcium chloride is dissolved in H2O and disappears.

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  1. 16 August, 22:11
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    Ice Cream Melts when Left at room temperature
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