Chemistry, 03.01.2022 07:30, austinmiller3030
Ella set up an experiment to investigate one of her questions. She set up one test
tube to look like Figure 1. She set up another test tube similar to Figure 1 but without
a lamp, and placed it in a dark closet. A day later, Ella checked the water level in
each test tube.
What was the test (independent) variable in the student's experiment?
A. The amount of light.
B. The amount of time.
C. The water level in the test tube.
D. The amount of oxygen released.
Answers: 1
Chemistry, 22.06.2019 10:50, lejeanjamespete1
8) a mixture of he, ne and ar has a pressure of 7.85 atm. if the ne has a mole fraction of 0.47 and 8) ar has a mole fraction of 0.23, what is the pressure of he? a) 4.2 atm b) 3.7 atm c) 5.5 atm d) 2.4 atm e) 1.8 atm
Answers: 1
Chemistry, 22.06.2019 14:50, alexabbarker9781
How are evaporation and sublimation similar? a both involve the formation of a gas. b both release energy to the surroundings. c both take place throughout a solid. d both take place at the surface of a liquid.
Answers: 1
Ella set up an experiment to investigate one of her questions. She set up one test
tube to look li...
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