Three students are asked to discuss why the water only condensed on the
upper half of the test tube. Select the student that employs correct scientific
reasoning
. Student 1: Water is left in the mouth of the test tube because carbon dioxide leaves first and
water is then left behind, this is due to the difference in the molar masses.
• Student 2: The water only condensed on the upper half of the test tube because the upper half
was cool enough to allow the phase change to occur.
• Student 3: As the carbon dioxide left the test tube it pushed the water vapor out.
O Student 3
OStudent 2
O Student 1
Answers: 3
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Three students are asked to discuss why the water only condensed on the
upper half of the test tube...
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