abby162 abby162

28-11-2016
Chemistry

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4 signs of a chemical change

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TeamBrainHelper TeamBrainHelper

28-11-2016

There are four signs that a chemical reaction has occurred: a change in color, a change in temperature, formation of a gas or formation of a precipitate. A precipitate is a solid that forms when two liquid solutions are mixed.

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dave152 dave152

28-11-2016

change in color
change of temperature
formation of a gas
formation of precipitation

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