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Chemistry, 21.06.2019 23:30
Agroup of students is studying convection currents. they fill two identical balloons with the same amount of helium. one balloon is placed in a freezer and the other in an area with warm air. after 10 minutes, the balloons are released from a height of 1 meter. which of the following do the students most likely observe? a. the balloons both rise. the cold balloon is larger than the warm balloon. b. the balloons rise at the same rate. both balloons are the same size. c. the warm balloon expands and rises. the cold balloon shrinks and sinks. d. the cold balloon expands and rises. the warm balloon shrinks and sinks.
Answers: 2
Chemistry, 23.06.2019 13:00
The gram molecular mass or co2 is the same as the gram molecular mass of
Answers: 2
Chemistry, 23.06.2019 17:30
Using the results from the two previous questions: solution one: 1 x 10-4 m solution two: 1 x 10-7m the hydrogen ion concentration of these two solutions differ from each other by a factor of
Answers: 3
Chemistry, 23.06.2019 18:30
Sediment that settles on the bottom of the sea may form layers of rock which description tells how this sediment is deposited. a.)randomely b.)vertically c.)diagonally d.)horizontally
Answers: 2
In some circumstances, materials that are being heated in the lab could catch fire. if a flammable s...
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