Crad. schoology. com/common-assessment-delivery/star t/32746561967action onresume&submissionid=2640153UU Lab Results: Density
Substance
Trial 1
Trial 2
Trial 3
Trial 4
Trial 5
Average
Unknown on
Floor
0.78
0.79
0.775
0.785
0.79
0.78
Unknown on
Shoe
0.785
0.79
0.76
0.81
0.787
0.783
Based on this test, what could the unknown substance on the shoe bo?
pick all that it could be
Water
Isopropyl Alcohol
Acetone
Acetic Acid
Hexanes
Octane
O Mineral Oil

Scientists are conducting a study on the effectiveness of a new drug on memory loss. they are giving some of the test subjects the new drug to find out if it improves their long-term memory. which are possible limitations of this study? check all that apply. a) test subjects may want to participate in additional experiments. b) test subjects may think they should be paid more. c) test subjects may get bored and want to quit early. d) test subjects may have to travel during the experiment. e) test subjects may have full-time jobs. this is multiple choice. you for the !