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To tell if a chemical reaction has occurred look for these four things:

1) color change

2) the formation of gas bubbles

3) formation of a precipitate

4) temperature change

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14y ago

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Four clues to a chemical reaction?

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Formation of bubbles or gas: Gas evolution can indicate a chemical reaction is occurring. Change in color: A sudden change in color could be a sign of a reaction, such as a shift from clear to cloudy. Temperature change: If the reaction generates heat (exothermic) or absorbs heat (endothermic), it can be an indication that a chemical reaction is taking place.


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The list that indicates which metals are able to displace other metals in a chemical reaction is called?

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