If an object is moving at a constant velocity and you want to change its momentum you would change its

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?

What is impossible to do with a hypothesis

Calculate the molarity of 48.0 ml of 6.00 m h2so4 diluted to 0.250 l .