Determine whether each observation generally corresponds to a physical change or a chemical change. A liquid freezes into a solid. Bubbles are produced upon mixing two solutions. A precipitate is formed from two solutions. A solution heats up upon mixing with another. A solid dissolves into water. The color of a substance changes over time

A liquid freezes into a solid or any other state change is a physical change. Bubbles are produced upon mixing two solutions is a Chemical change as gas formed. a precipitate is formed from two solutions is a Chemical change  The conversion of a substance to another compound over time leads to a color change of the substance due to the insolubility of the compound.

It is a chemical change or properties. A solution that heats up upon mixing with another is a Chemical change known as an exothermic reaction. dissolving the substance in a liquid is a physical change physical that can be regained by evaporation or crystalization.

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