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Question
a student performs this experiment. step 1: she pours a colorless solution into a beaker that contains another colorless liquid. yellow particles appear in the step 2: she lets the yellow particles settle in the beaker and then separates the colorless liquid by decantation. what has most likely occurred in the beaker? a chemical change in step 1 and a physical change in step 2 chemical changes in both step 1 and step 2 a physical change in step 1 and a chemical change in step 2 physical changes in both step 1 and step 2
En el paso 1, la aparición de partículas de un color diferente (amarillas) a partir de dos líquidos incoloros indica que se ha producido una reacción química que ha dado lugar a un nuevo producto. En el paso 2, la separación de la fase líquida incolora de las partículas sedimentadas a través de la decantación es un proceso físico que no cambia la naturaleza química de los componentes.
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A. a chemical change in step 1 and a physical change in step 2