PL HELP Question 6 (5 points) Which of the following is NOT true about the troposphere? Obj 1
a
b
It extends up from Earth about 10 kilometers.
It is a fluid like the ocean.
It contains a protective layer of ozone.
It contains a lot of water vaport.
с
d

How many moles of air are there in a human lung with a volume of 2.4 l at stp? explain your answer

Achemistry student needs to standardize a fresh solution of sodium hydroxide. he carefully weighs out of oxalic acid , a diprotic acid that can be purchased inexpensively in high purity, and dissolves it in of distilled water. the student then titrates the oxalic acid solution with his sodium hydroxide solution. when the titration reaches the equivalence point, the student finds he has used of sodium hydroxide solution.calculate the molarity of the student's sodium hydroxide solution. be sure your answer has the correct number of significant digits.

Which description best characterizes the motion of particles in a solid?