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Chemistry, 23.06.2019 00:00
Before it was launched, a helium-filled balloon had a pressure of 201 kpa at a temperature of 27°c. at an altitude of 15,000 m, the pressure had decreased to 2.5 kpa and the temperature had dropped to -14 °c. the volume of the balloon increased to 59.3 m3. what is the original volume of the balloon? 13 m3 0.85 m3 0.077 m3 1.17 m3
Answers: 3
Chemistry, 23.06.2019 08:40
The half-life of a certain element is 100 days. how many half-lives will it be before only one eighth of this elementremains?
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Chemistry, 23.06.2019 12:40
During an experiment, ice and water were placed in a perfectly insulated thermos flask at 0 °c. describe this system when it phase reaches equilibrium.
Answers: 1
Which features are created by groundwater erosion and deposition? Check all that apply. stalagmites...
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