Which of the following is not a polymer? plastic alcohol teflontm polyester

Asample of the male sex hormone testosterone, c19h28o2, contains 3.88×10^21 atoms of hydrogen.(a) how many atoms of carbon does it contain? (b) how many molecules of testosterone does it contain? (c) how many moles of testosterone does it contain? (d) what is the mass of this sample in grams?

Temperature is _related to the average kinetic energy of a gas. inversely directly not disproportionally

How would the number of moles (n) of o2 change if the atmospheric pressure doubled but all other variables stayed the same