richandaealey0
contestada

Matter can undergo both chemical and physical changes. What indicates that the change was definitely
chemical?

The temperature changed.


A precipitate formed

The color changed.


A gas formed.
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Respuesta :

Some signs of a chemical change are a change in color and the formation of bubbles. The five conditions of chemical change: color chage, formation of a precipitate, formation of a gas, odor change, temperature change.