On an as yet undiscovered planet, the atmo-
sphere is composed of a mixture of 79% argon
and...
On an as yet undiscovered planet, the atmo-
sphere is composed of a mixture of 79% argon
and 20% oxygen (volume percentage) along
with trace amounts of other gases, including
CO2, Kr, and Ne. An enterprising student on
that planet wishes to sell the equivalent of he-
lium balloons to small children. Heliun is not
available.
Which of the gases
1) krypton
II) carbon dioxide
III) methane
IV) propane
V) nitrogen
VI) carbon monoxide
would be an acceptable replacement so that
the balloons will float in that atmosphere?
Answers: 2
Chemistry, 23.06.2019 08:00
Drag each pressure unit with the corresponding number to describe standard atmospheric pressure
Answers: 1
Chemistry, 23.06.2019 11:30
Jenny places a strip of ph paper into a solution. when she removes the ph paper, it has turned yellow-green. what should jenny do next to determine the ph of her solution? a. use a different testing method because the ph paper should not change colors b. place the ph paper into a machine that reads the ph of the solution c. compare the ph paper's color with the color of ph paper from another solution d. compare the ph paper's color with a chart of colors and ph ranges
Answers: 1
Chemistry, 23.06.2019 13:30
The two isotopes of chlorine are 3517cl and 3717cl. which isotope is the most abundant?
Answers: 1
History, 02.04.2020 00:53
Mathematics, 02.04.2020 00:53
History, 02.04.2020 00:53
History, 02.04.2020 00:53
Mathematics, 02.04.2020 00:53
English, 02.04.2020 00:53
History, 02.04.2020 00:53