Chemistry, 22.07.2019 03:30 molinaemily009
Andrea is performing an experiment in which she needs to know when a strong acid is present. she is not sure which indicator to use, so she looks up the following table in her science textbook. indicator ph range thymol blue 1.2 - 2.8 phenol red 6.4 - 8.0 phenolphthalein 8.0 - 10.0 trinitrobenzoic acid 12.0 - 13.4 according to the textbook, which indicator should andrea use? hint: neutral substances have a ph of 7. acids have a ph that is less than 7, and bases have a ph that is greater than 7. a. phenolphthalein b. phenol red c. thymol blue d. trinitrobenzoic acid reset submit
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Chemistry, 22.06.2019 13:30, annanikherrera
If the concentration of phosphate in the cytosol is 2.0 mm and the concentration of phosphate in the surrounding fluid is 0.1 mm, how could the cell increase the concentration of phosphate in the cytosol? a) passive transportb) diffusionc) active transportd) osmosise) facilitated diffusion
Answers: 3
Chemistry, 23.06.2019 04:31, 24swimdylanoh
What are the coefficients that will balance the skeleton equation below? n2 + h2 → nh3
Answers: 1
Andrea is performing an experiment in which she needs to know when a strong acid is present. she is...
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