While in Europe, if you drive 109 km per day, how much money would you spend on gas in one week if gas costs 1. euros per liter and your car's gas mileage is 41.0 mi/gal ? Assume that 1 euro = 1.26 dollars.

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?

If equal masses of the listed metals were collected , which would have a greatest volume ? a. aluminum 2.70,b.zinc7.14,c.copper 8.92,d.lead 11.34

1) this is the structure in the cell nucleus that houses a cell's genetic information