rishaniravindran2006 rishaniravindran2006

29-09-2020
Chemistry

contestada

Firewood burns and ashes remain

is it a chemical or physical change?

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kathywelborn07 kathywelborn07

29-09-2020

It is a physical change because you can not put it back like it was

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clauherrera125 clauherrera125

29-09-2020

Respuesta: físico

Explanation:El papel, la ceniza y el humo son sustancias diferentes. CLASES DE CAMBIOS QUÍMICOS: ... En la combustión la materia arde y se forman otras sustancias, como ceniza, vapor de agua y dióxido de carbono. Por ejemplo, se produce una combustión cuando arde la madera

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