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OpenStudy (anonymous):
Natural indicator portfolio!!! HELP!!! 1. What was the color of the indicator at acidic, neutral, and basic conditions? Example: The vinegar was _____(insert color), which is an ______ (choose acid, base, or neutral). 2. What chemical changes were responsible for the color changes? (Hint: think about the pH scale and the specific or elemental changes). 3. Label the materials you tested as acidic, basic, or neutral (list all 8 or more household items tested and their corresponding classification).
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OpenStudy (joannablackwelder):
That depends on the indicator that you used.
OpenStudy (joannablackwelder):
You mentioned natural indicator. Did you use cabbage juice?
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Use Hvap of water = 40.7 kJ/mol, c of water = 4.184 J/g.u00b0C, and molar mass of HO = 18.
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