What causes the plates of the lithosphere to move?
a) high speed winds in the layers of the a...
Answers: 1
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 05:50
Which of the following isotopes has the same number of neutrons as phosphorus-31?
Answers: 1
Chemistry, 23.06.2019 06:00
When hydrogen peroxide (h2o2) is added to potassium iodide (ki) solution, the hydrogen peroxide decomposes into water (h2o) and oxygen (o2). the chemical equation for the decomposition reaction is: 2h2o2—> 2h2o + o2. what is the role of the potassium iodide in this reaction? a. reactant. b. product. c. precipitate. d. catalyst.
Answers: 1
Chemistry, 23.06.2019 07:30
Which statement is actually true about the relationship between activation energy and reaction rates? low activation energy barriers result in low rates. high activation energy barriers result in low rates. low activation energy barriers result in no reaction. high activation energy barriers result in no reaction.
Answers: 2
Health, 15.01.2021 05:30
Mathematics, 15.01.2021 05:30
History, 15.01.2021 05:30
Mathematics, 15.01.2021 05:30
English, 15.01.2021 05:30
Arts, 15.01.2021 05:30
French, 15.01.2021 05:30
Mathematics, 15.01.2021 05:30
Physics, 15.01.2021 05:30
History, 15.01.2021 05:30
Mathematics, 15.01.2021 05:30
Mathematics, 15.01.2021 05:30
Biology, 15.01.2021 05:30
Physics, 15.01.2021 05:30