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Título: LITMUS TEST
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Litmus changes its colour depending on the pH of the solution. Here after litmus paper strips were dipped in different solutions. The strip was left unchanged (left), changed to blue (centre), and changed to red (right) indicating neutral (water), alkaline (baking soda) and acidic (vinegar) solutions, respectively.
Crédito: Album / Science Source / GIPhotoStock
Tamaño imagen: 7000 × 3502 px | 70.1 MB
Tamaño impresión: 59.3 × 29.7 cm | 2755.9 × 1378.7 in (300 dpi)