Help pleaseee :( .

What phase of matter has particles that are held together but can flow past each other and takes the shape of a container, filling it from the bottom up?

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 happened in 2012 and how does it illustrate the importance of understanding the sun and how it works?