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
Answers: 1
Chemistry, 23.06.2019 01:30
What happens to the concentration of hydronium ions as the ph of a solution increases? a. hydronium ion concentration stays the same b. hydronium ion concentration decreases c. hydronium ion concentration increases
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Chemistry, 23.06.2019 03:00
Achemical equilibrium between gaseous reactants and products is shown. n2(g) + 3h2(g) ⇌ 2nh3(g) how will the reaction be affected if the pressure on the system is increased? it will shift toward the reactant side as there is lower pressure on the reactant side. it will shift toward the product side as there is higher pressure on the product side. it will shift toward the reactant side as there are a greater number of moles of gas on the reactant side. it will shift toward the product side as there are a fewer number of moles of gas on the product side.
Answers: 2
Chemistry, 23.06.2019 09:00
Need ! assume that the variables x and y are directly related. if k = 8, what is the value for each of the following points? be sure and record your data to be used in the following problem. x y k 0.
Answers: 2
Andrea is performing an experiment in which she needs to know when a strong acid is present. she is...
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