Biology, 16.07.2019 13:40 kristygodwin
15 points! ! cindy hypothesizes that if she adds salt to a weak acid, then its ph will be lowered. she develops the following experiment to test her hypothesis. which of the following steps could compromise the validity of her experiment? fill two beakers with 50 ml of the same weak acid. add salt to the first beaker. add water to the second beaker. measure the ph of the solution in each beaker. a.) step 1 b.) step 2 c.) step 3 d.) step
Answers: 1
Biology, 22.06.2019 01:30, alaina3792
Which of the following shows the correct order in which light information travels through the eye? (2 points) lens, pupil, retina, optic nerve pupil, lens, retina, optic nerve pupil, lens, optic nerve, retina lens, pupil, optic nerve, retina
Answers: 2
15 points! ! cindy hypothesizes that if she adds salt to a weak acid, then its ph will be lowered....
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