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VEJA o ALGODÃO CAMALEÃO: ele muda de COR Essa é uma das 85 experiências do Laboratório do Manual do Mundo. O truque é colocar um reagente sobre o algodão que muda de cor quando adiciona uma substância ácida. Depois, outra reação neutraliza o ácido e ele volta a ficar branco. #manualdomundo #quimica #laboratorio
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