A student mixes a dark green solution with water, and the result is pale green. Is this likely a chemical change or not? Explain.

This is not a chemical change

Explanation:

The dark green solution mixed with the water, but the water is still water. There were no bubbles, smell, temperature change, or any other signs of a chemical change

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Option (1).

Explanation:

Precipitation reaction may be defined as the chemical reaction in which an insoluble substance called precipitate forms at the end of the reaction. The ions are displaced twice during the precipitation reaction.

The mixing of two clear liquids forms a white substance. This substance is an insoluble precipitate that forms by the chemical combination of the reactants. The two reactants have undergone the chemical change that leads to the formation of the precipitate.