Chemistry, 28.11.2019 04:31 brandon2222269
An evacuated steel vessel with a volume of 10.00 liters is filled with 32.00 atm ofpure o2 at 25°c. an electric discharge is passed through the vessel, causing someof the oxygen to be converted into ozone. as a result, the pressure inside thevessel drops to 30.64 atm at 25°c. calculate the final percent by mass of ozonein the vessel
Answers: 2
Chemistry, 22.06.2019 21:00
Once similarity and one difference between a mixture of elements and a mixture of compounds
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Chemistry, 22.06.2019 21:50
If e is the symbol for an element, which two of the following symbols represent isotopes of the same element? 1. e2. e3. ea.1 and 2c.1 and 4b.3 and 4d.2 and 3
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Chemistry, 22.06.2019 23:30
The comparison of the number of atoms in a copper coin the size of a penny with the number of people on earth is made to illustrate which of the following? a. that atoms are indivisible b. that atoms are very small c. that atoms are very large d. that in a copper penny, there is one atom for every person on earth
Answers: 1
Chemistry, 23.06.2019 01:30
Which conclusion fits the data in the table? a. heat chemically changes chocolate and margarine. b. all solids become liquid at 100°f. c. removing heat from a substance it to melt. d. matter may change shape when it is heated.
Answers: 1
An evacuated steel vessel with a volume of 10.00 liters is filled with 32.00 atm ofpure o2 at 25°c....
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